Month: January 2019

Math?

Remember dont just type in the answer, in other words explain it clear so it can be comprehensible.

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Erik works 35 hours under one week and earns 3010 SEK. Anna has the same hourly wage and earns 1892 SEK.
How many hours have Anna worked?
Type a formula that shows how Anna’s salary depends of how many hours she worked. Let y be the pay in SEK when she worked x hours.
When to take a driving license in (Roy and Rogers) driving school in Trollhattan, the theory and the mandatory driving lessons cost together 2300 SEK. The extra/additional driving lessons cost 220 SEK per lesson.
What will Lars pay total/altogether to the driving school if he also takes 12 extra/additional driving lessons?
Sara, who just recently accomplished to get the driving license, paid 4060 SEK to the driving school. How many extra/additional driving lessons did she take?
Write a formula that describes how much you will pay in total for the driving school if you undergo/experience a driving lesson and take x extra/additional driving lessons.
In a store they sell measure ordered carpets. The price for the carpet is 295 SEK/ m 虏 and to put edge on the carpet it costs 120kr/m.
What costs a rectangular carpet with the dimension: 2.50m x 3,20m which will line/fringed/trimmed around)?
In the carpet shop it is said that they want to use their computer for printing bills. And to do this kind of thing it needs a formal calculation of the price on lined/trimmed carpets of different length and width. Set up such formula.
A truck’s value, y SEK, is assumed to be a function of the car’s age, x years, according to y=750000 路 0, 80exponentX ( IT MEANS 0,80X)
How much did the truck cost as new?
Justify your answer in a).
Describe how the truck’s value changes with its age.
Benny controlled the fuel consumption for his car. He noted the distance the car had travelled/passed/ride between each refueling. Later he compiled the results after seven tank refueling in a table.
The table goes like this:
Distance (mil) Gasoline consumption (I)
23,5 29,2
32,0 38,4
45.6 53, 1
28,6 …

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Math

Note: All interest rates are to be assumed to be yearly interest rates.

Question 1
(10 points)

1. You decide to invest $15000 into a bank account that that is compounding its interest monthly. Assuming the bank is paying out an interest rate of the current prime rate – 1% (In the event that prime – 1% is less than 1%, use 1%), and the investment is for 5 years

a) How much money (total) do you have after the 5 years pass?

b) How much do you earn in interest over the 5 years?

Question 2
(10 points)

2. You wish to have $500,000 saved up in 30 years. Assuming that you can get an interest rate of prime + 5% on your investment (compounded quarterly.)

a) How much do you need to invest today to have $500,000 30 years in the future?

b) How much of that total is interest?

Question 3
(10 points)

3. You borrow $50,000 at 5% interest (compounded daily).

a) After 1 year passes, you pay off $25000 of the loan. How much do you still owe on the loan?

b) After another year passes, you wish to pay off the loan. How much do you need to pay to pay it off?

Essay

(15 points)

4. While everyone dreams of high interest rates for investments, usually high interest rates come with other disadvantages. Using the interest or other sources, research and write an essay on the advantages and disadvantages of higher interest rates on investments. Look at factors like risk, reward, and possible other things that would change to balance out the higher interest rates.

MATH 106 QUIZ 4

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MATH 106 QUIZ 4 Due: by 11:59 PM, Sunday, September 22, 2013,
(take-home part) via the Assignment Folder
NAME: _______________________________
I have completed this assignment myself, working independently and not consulting anyone except the instructor.
INSTRUCTIONS
The take-home part of Quiz 4 is worth 75 points. There are 10 problems (5 pages), some with multiple parts. This quiz is open book and open notes. This means that you may refer to your textbook, notes, and online classroom materials, but you must work independently and may not consult anyone (and confirm this with your submission). You may take as much time as you wish, provided you turn in your quiz no later than Sunday, September 22, 2013.
Show work/explanation where indicated. Answers without any work may earn little, if any, credit. You may type or write your work in your copy of the quiz, or if you prefer, create a document containing your work. Scanned work is acceptable also. In your document, be sure to include your name and the assertion of independence of work.
General quiz tips and instructions for submitting work are posted in the Quizzes conference.
If you have any questions, please contact me via Private Message in WebTycho.
1. (4 pts) Determine how many six-character codes can be formed if the first, second, third, and fourth characters are letters, the fifth character is a nonzero digit, the sixth character is an odd digit, and repetition of letters and digits are allowed. (A digit is 0, 1, 2, .., or 9.) Show your work . 1. ____D__
D. 20,563,920
Number of possible codes
2. (4 pts) Suppose that a multiple choice exam has seven questions and each question has five choices. In how many ways can the exam be completed? Show your work. 2. ___D___
D. 78,125
Number of possible ways exam can be completed=
3. (4 pts) Given the feasible region shown to the right, find the values of x and y that minimize the objective function 8x + 7y. Show your…

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math

Need done in the next 10 hours

Need an A

Please show all work in detail

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math 210 quizes
1. The graph of a linear inequality consists of a line and some points on both sides of the line.
Answer True False
Question 2

When the constraints of a Linear Programming problem have = signs, then you are finding the maximum value of the profit.
Answer True False
Question 3

The graph of a linear inequality consists of a line and all of the points on one side of the line.
Answer True False
Question 4

If a linear programming problem has a solution at all, it will have a solution at some corner of the feasible set.
Answer True False
Question 5

No point other than a corner of the feasible set can be a solution to a Linear Programming problem.
Answer True False
Question 6

No point in the interior of the feasible set can be a solution to a Linear Programming problem.
Answer True False
Question 7
Every Linear Programming problem with a bounded nonempty feasible region has a solution.
Answer True False
Question 8

No linear Programming problem with an unbounded feasible region has a solution.
Answer True False
Question 9

The graphical method is the only practical method for all Linear Programming problems.
Answer True False
Question 10

In a feasible basic solution all the variables (with the possible exception of the objective) are nonnegative.
Answer True False
math 216 quizes
Question 1

The following null hypothesis has been formulated to test for the equality of three population means: H0: u1 = u2 = u3. Choose the correct alternative hypothesis. Hint: Refer to One-Way ANOVA Test p. 536 in OCR.
Answer
A. u1 > u2 > u3
B. Not all the means are equal.
C. u1

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math 540

“Linear Programming Approach Please respond to the following:

Does the linear programming approach apply the same way in different applications? Explain why or why not using examples.

Linear Programming is a mathematical technique for choosing the best alternative form of a set of feasible alternatives. In situations where the objectives function as well as the restrictions or constraints can be expressed as linear mathematical functions. For example

THE DIET PROBLEM:

To find the cheapest combinations of foods that will satisfy all your nutritional requirements.

Example: Suppose the only foods available in your local store are potatoes and steak. The decision about how much of each food to buy is also made entirely on dietary and economic considerations. We have the nutritional and cost information in the following table: Per unit of potatoes Units of carbohydrates, Units of vitamins, Units of proteins, Unit cost per unit of steak Minimum requirements

The problem is to find a diet (a choice of the numbers of units of the two foods) that meets all minimum nutritional requirements at minimal cost.

a. Formulate the problem in terms of linear inequalities and an objective function.

b. Solve the problem geometrically.

We begin by setting the constraints for the problem. The first constraint represents the minimum requirement for carbohydrates, which are 8 units per some unknown amount of time. 3 units can be consumed per unit of potatoes and 1 unit can be consumed per unit of steak. The second constraint represents the minimum requirement for vitamins, which are 19 units. 4 units can be consumed per unit of potatoes and 3 units can be consumed per unit of steak. The third constraint represents the minimum requirement for proteins, which are 7 units. 1 unit can be consumed per unit of potatoes and 3 units can be consumed per unit of steak. The fourth and fifth constraints represent the fact that all feasible solutions must be nonnegative because we can’t buy negative quantities.

MAT 540 week 9 quiz 5

The solution to the LP relaxation of a maximization integer linear program provides an upper bound for the value of the objective function.  
Answer
True
False
2 points
Question 2

A conditional constraint specifies the conditions under which variables are integers or real variables.  
Answer
True
False
2 points
Question 3

In a mixed integer model, some solution values for decision variables are integer and others are only 0 or 1.

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The solution to the LP relaxation of a maximization integer linear program provides an upper bound for the value of the objective function.  
Answer
True
False
2 points
Question 2

A conditional constraint specifies the conditions under which variables are integers or real variables.  
Answer
True
False
2 points
Question 3

In a mixed integer model, some solution values for decision variables are integer and others are only 0 or 1.  
Answer
True
False
2 points
Question 4

If we are solving a 0-1 integer programming problem with three decision variables, the constraint x1 + x2 = 1 is a mutually exclusive constraint.  
Answer
True
False
2 points
Question 5

Rounding non-integer solution values up to the nearest integer value will result in an infeasible solution to an integer linear programming problem.  
Answer
True
False
2 points
Question 6

In a 0-1 integer programming problem involving a capital budgeting application (where xj = 1, if project j is selected, xj = 0, otherwise) the constraint x1 – x2 = 0 implies that if project 2 is selected, project 1 can not be selected.  
Answer
True
False
2 points
Question 7

If we are solving a 0-1 integer programming problem, the constraint x1 = x2 is a __________ constraint.
Answer
multiple choice
mutually exclusive
conditional
corequisite
2 points
Question 8

The Wiethoff Company has a contract to produce 10000 garden hoses for a customer. Wiethoff has 4 different machines that can produce this kind of hose. Because these machines are from different manufacturers and use differing technologies, their specifications are not the same.         Write the constraint that indicates they can purchase no more than 3 machines.
Answer
Y1 + Y2 + Y3+ Y4 = 3
Y1 + Y2 + Y3+ Y4 = 3
Y1 + Y2 + Y3+ Y4 =3
none of the above  
2 points
Question 9

If we are solving a 0-1 integer programming problem, the constraint x1 = x2 is a __________…

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Independent random samples were taken from normal distributions

1. Independent random samples were taken from normal distributions of the yearly production of ships built by the International Ship Building Company under (a) a fixed-position layout (sample size = 7) and (b) a project layout (sample size = 8). The company wants to know if the variances in the yearly production of ships for the 2 layouts are equal. The sample variances (s2) are: fixed-position layout = 9, project layout = 4. Using a = .10, what formula would you use?
(Points : 5)
= (fij eij)2 eij

F = s12 s22

x = x n

s2 = (x – x )2 (n 1)

2. Suppose that a random sample of 25 retail merchants from all of the 5,000 merchants in a large city yielded a mean advertising expense (x ) for the past year of $1,250. If the annual advertising expenditures are known to be normally distributed and the standard deviation of the population ( ) is $750, what formula would you use to determine the 95% confidence interval for the true mean advertising expense?
(Points : 5)
F = s12 s22

x – t(s n)

z = (x – )

x – z( n)

3. The average gasoline price ( ) of one of the major oil companies in Europe has been $1.25 per liter with a population standard deviation of the population ( ) of $0.14. Recently, the company has undertaken several efficiency measures in order to reduce prices. Management is interested in determining whether their efficiency measures have actually reduced prices. A random sample of 49 of their gas stations is selected and the average price (x ) is determined to be $1.20 per liter. What formula would you use to determine whether the new efficiency measures were effective? (a = 0.05)
(Points : 5)
F = s12 s22

t = (x – x-bar) s/ n

z = (x – x-bar) / n

= b0 + b1x

4. On the most recent tax cut proposal, a random sample of democrats and republicans in the Congress cast their votes as shown below. Are the opinions on the tax cut proposal independent of party affiliation? Use a = 0.01.
Favor Oppose Abstain
Democrat 85 78 37
Republican 118 61 25

5. An automobile manufacturer has a new model that they claim gets 27 miles per gallon. A consumer testing agency selects 50 of these cars and finds that the sample mean (x ) is 25 miles per gallon and s2 = 9 miles per gallon. Is the manufacturer s claim accurate? (a = 0.05)

6. Is there a significant difference in automobile insurance rates in different cities of comparable size in the U.S.? To answer this question a survey was taken in 3 cities. A sample of 6 auto insurance premiums was taken for married, male drivers, over 35 years-of-age, with no accidents in the last 5 years. The table below contains semi-annual premiums for equal policy coverage. Test the appropriate hypothesis at the 0.05 level of significance.

Baton Rouge Fresno Tulsa
96 124 82
128 149 124
83 166 132
61 147 135
101 149 109
78 130 121

Math 6

The time spent (in days) waiting for a heart transplant in two states for patients with type A+ blood can be approximated by a normal distribution, as shown in the graph to the right. Complete a & B

The graph shows between 45 and 210

=126

=23.6

What is the shortest time spent waiting for a heart that would still place a patient in the top 10% of waiting times?

____ days (round to two decimals)

I will send B s percentage after A is answered through Chat.

MAT 126 Week 3 Discussion 1

1.
This Discussion will concentrate on functions and graphs. Understanding the definitions of words is the essence of mathematics. When we understand the meaning of words, finding a solution is much easier because we know what task the problem is asking us to complete.

Part 1

1. In your own words, define the word function.

2. Give your own example of a function using a set of at least 4 ordered pairs. The domainwill be any four integers between 0 and +10. The rangewill be any four integers between -12 and 5. Your example should not be the same as those of other students or the textbook. There are thousands of possible examples.

3. Explain why your example models a function. This is extremely important for your learning.

4. Give your own example of at least four ordered pairs that does notmodel a function. The domainwill be any four integers between 0 and +10. The rangewill be any four integers between -12 and +5. Your example should not be the same as those of other students or the textbook. There are thousands of possible examples.

5. Explain why your example does not model a function.


Part 2

6. Select any two integers between -12 and +12 which will become solutions to a system of two equations.

7. Write two equations that have your two integers as solutions. Show how you built the equations using your integers. Your solution and equations should not be the same as those of other students or the textbook. There are infinite possibilities.

8. Solve your system of equations by the addition/subtraction method. Make sure you show the necessary 5 steps. Use the example on page 357 of Mathematics in Our Worldas a guide.

MAT 126 Week 3 Discussion 2

This Discussion tests your ability to use a ruler and convert from Standard English measure to Metrics. You will then apply your knowledge of the geometric measurements of area and volume through real world problems. Choose a room in your house. Measure the length, the width, and the height. Make sure you use feet and inches. Most rooms are not a whole number, such as 10 feet; they are 10 feet and 3 inches, or 9 feet 6 inches, etc. NOTE: Do not use decimal numbers for the feet. For example, do not write 10.3 to mean 10 3 , because that is incorrect. Convert the measurements to all inches for step 2, and then convert back to square feet for step 3. Record your dimensions and, using the appropriate formula, find the surface area of the room. A gallon of paint covers about 350 square feet. How many gallons would be required to paint the room? Round up to the nearest gallon. If a gallon of paint costs $22.95 plus 8% tax, what would be the total cost to paint the room? One inch is equivalent to 2.54 centimeters. Convert your English measurements to metrics. Record each dimension in centimeters. Show your conversions. Find the volume in cubic centimeters. Be neat and precise. If each dimension (length, width, and height) is doubled, what happens to the volume of the room? Show your work. Respond to at least two of your classmates postings. Review their calculations and determine if their results seem reasonable for the size of the room

Math-106-final

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page1of10

MATH 106 FINAL EXAMINATION

This is an open-book exam. You may refer to your text and other course materials as you work

on the exam, and you may use a calculator.You must complete the exam individually.

Neither collaboration nor consultation with others is allowed.

Record your answers and work on the separate answer sheet provided.

There are 25 problems.

Problems #1 12 are Multiple Choice.

Problems #13 15 are Short Answer. (Work not required to be shown)

Problems #16 25 are Short Answer with work required to be shown.

MULTIPLE CHOICE

1. Rita purchases a car for $32,000, makes a down payment of 5%, and finances the rest with a

6-year car loan at an annual interest rate of 4.2% compounded monthly. What is the amount of

her monthly loan payment?

1. _______

A. $556.44

B. $528.62

C. $503.57

D. $478.39

2. Find the result of performing the row operation(2)R1+R2 R22. _______

4 1

2 3 3

6

A. 4 1

10 3 3

6

B. 4 1

10 5 3

0

C.8 12

2 3 6

6

D.4 1

8 7 3

9

MATH 106 Finite Mathematics Fall, 2013, 1.1

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3. Find the values ofxandythat maximize the objective function 7x+ 5yfor the feasible

region shown below. 3. _______

A. (x,y) = (5, 15)

B. (x,y) = (8, 10)

C. (x,y) = (0, 20)

D. (x,y) = (10, 0)

4. Kindergarten children have normally distributed heights with a mean of 39 inches and a

standard deviation of 2 inches. What is the probability that a randomly chosen kindergarten child

will have a height between 37 and 41 inches?

4. ______

A. 0.5000

B. 0.6826

C. 0.7580

D. 0.9544

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page3of10

5. Determine which shaded region corresponds to the solution region of the system of linear

inequalities

2x+y 4

x+y 3

x 0

y 0

5. _______

GRAPH A. GRAPH B.

GRAPH C. GRAPH D.

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page4of10

For #6 and #7:

A merchant makes two raisin nut mixtures.

Each box of mixture A contains 2 ounces of raisins and 9 ounces of peanuts, and sells for $2.80.

Each box of mixture B contains 5 ounces of raisins and 12 ounces of peanuts, and sells for $4.00.

The company has available 1,000 ounces of raisins and 3,500 ounces of peanuts. The merchant

will try to sell the amount of each mixture that maximizes income.

Letxbe the number of boxes of mixture A and letybe the number of boxes of mixture B.

6. Since the merchant has 1,000 ounces of raisins available, one inequality that must be satisfied

is: 6. _______

A. 2.80x+ 4y 1,000

B. 7x+ 21y 1,000

C. 2x+ 9y 1,000

D. 2x+ 5y 1,000

7. State the objective function. 7. _______

A. 7x+ 21y

B. 2.80x+ 4y

C. 2x+ 5y

D. 2x+ 9y

8. A jar contains 12 red jelly beans, 8 yellow jelly beans, and 10 orange jelly beans.

Suppose that each jelly bean has an equal chance of being picked from the jar.

If a jelly bean is selected at random from the jar, what is the probability that it isnot yellow?

8. _______

A.

15

4

B.

11

4

C.

11

7

D.

15

11

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page5of10

9. When solving a system of linear equations with the unknownsx1andx2

the following reduced augmented matrix was obtained. 9. _______

1 5

0 0 2

0

What can be concluded about the solution of the system?

A. The unique solution to the system isx1=5 andx2= 2.

B. There are infinitely many solutions. The solution isx1= 5t 2 andx2=t, for any real

numbert.

C. There are infinitely many solutions. The solution isx1= 5t 2 andx2=t, for any real

numbert.

D. There is no solution.

10. Which of the following statements isNOTtrue? 10. ______

A. The variance is a measure of the dispersion or spread of a distribution about its mean.

B. If all of the data values in a data set are identical, then the standard deviation is 0.

C. The variance is the square root of the standard deviation.

D. The variance must be a nonnegative number.

11. In a certain manufacturing process, the probability of a type I defect is 0.06, the probability

of a type II defect is 0.07, and the probability of having both types of defects is 0.02.

Find the probability that neither defect occurs. 11. ______

A. 0.85

B. 0.87

C. 0.89

D. 0.98

12. Which of the following isNOTtrue? 12. ______

A. If an event cannot possibly occur, then the probability of the event is a negative number.

B. A probability must be less than or equal to 1.

C. If only two outcomes are possible for an experiment, then the sum of the probabilities of

the outcomes is equal to 1.

D. If eventsEandFare mutually exclusive events, then P(E F) = 0.

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page6of10

SHORT ANSWER:

13. Let the universal setU= {1, 2, 3, 4, 5, 6, 7, 8}. LetA= {1, 2, 3, 8} andB= {1, 3, 5}.

Determine the setA B’. Answer: ______________

(Be sure to notice the complement symbol applied toB.)

14. Consider the following graph of a line.

(a) State thex-intercept. Answer: ______________

(b) State they-intercept. Answer: ______________

(c) Determine the slope. Answer: ______________

(d) Find the slope-intercept form of the equation of the line. Answer: ____________________

(e) Write the equation of the line in the formAx+By=CwhereA,B, andCare integers.

Answer: ____________________

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page7of10

15. A company compiled information about the gender and working status of its 420 employees,

as shown below.

Full-time Part-time Totals

Male 210 40 250

Female 90 80 170

Totals 300 120 420

(Report your answers as fractions or as decimal values rounded to the nearest hundredth.)

Find the probability that a randomly selected employee is:

(a) a male part-time employee. Answer: ______________

(b) a male employee or a part-time employee. Answer: ______________

(c) male, given that the employee is part-time. Answer: ______________

SHORT ANSWER, with work required to be shown, as indicated.

16. For a five year period, Brad deposited $600 each quarter into an account paying 3.6% annual

interest compounded quarterly.(Round your answers to the nearest cent.)

(a) How much money was in the account at the end of 5 years?Show work.

(b) How much interest was earned during the 5 year period?Show work.

Brad then made no more deposits or withdrawals, and the money in the account continued to

earn 3.6% annual interest compounded quarterly, for 4 more years.

(c) How much money was in the account after the 4 year period?Show work.

(d) How much interest was earned during the 4 year period?Show work.

17. Three flags are arranged vertically on a flagpole, with one flag at the top, one flag in the

middle, and one flag at the bottom. To create the flagpole arrangement, 13 flags are available,

each flag a different color. How many different flagpole arrangements of 3 flags are possible?

Show work.

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page8of10

18. A recreational club has 15 members. 10 of the club members are men and 5 are women.

(a) In how many ways can the club choose 6 members to form a volleyball team?Show work.

(b) In how many ways can the club choose 6 members to form the volleyball team, if 3 team

members must be men and 3 team members must be women?Show work.

(c) If a 6-person volleyball team is selected at random from the 15 club members, what is the

probability the team consists of 3 men and 3 women?Show work.

19. The average temperature in Metropolis in 1985 was 54.2 degrees. In 2010, the average

temperature in Metropolis was 56.7 degrees. Letybe the average temperature in Metropolis in

yearx, wherex= 0 represents the year 1985.

(a) Which of the following linear equations could be used to predict the average Metropolis

temperatureyin a given yearx, wherex= 0 represents the year 1985?Explain/show work.

A.y= 2.5x+ 54.2

B.y= 0.10x+ 54.2

C.y= 0.10x 144.3

D.y= 2.5x 4908.3

(b) Use the equation from part (a) to predict the average temperature in Metropolis in the year

2030.Show work.

(c) Fill in the blanks to interpret the slope of the equation: The rate of change of temperature with

respect to time is ______________________ per ________________. (Include units of

measurement.)

20. Solve the system of equations using elimination by addition or by augmented matrix methods

(your choice).Show work.

x+ 2y= 3

5x+ 4y= 21

MATH 106 Finite Mathematics Fall, 2013, 1.1

Page9of10

21. The feasible region shown below is bounded by lines 4x y= 6,x+y= 3, andy= 0.

Find the coordinates of corner pointA.Show work.

22. A survey of 120 gardeners found the following: 80 gardeners grow tomatoes. 30 gardeners

grow peppers. 92 gardeners grow tomatoes or peppers (or both).

(a) How many of the surveyed gardeners grow both tomatoes and peppers?Show work.

(b)LetT= {tomato growers} andP= {pepper growers}.Determine the number of gardeners

belonging to each of the regions I, II, III, IV.

U

T P

II

IV

IIII

MATH 106 Finite Mathematics Fall, 2013, 1.1

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23. Consider the sample data 50, 69, 43, 35, 20, 50, 48.

(a) State the mode.

(b) Find the median.Show work/explanation.

(c) State the mean.

(d) The sample standard deviation is 15.1. What percentage of the data fall within one

standard deviation of the mean?Show work/explanation.

(d) _______

A. 57%

B. 68%

C. 71%

D. 75%

24. If the probability distribution for the random variableXis given in the table, what is the

expected value ofX?Show work.

xi 20 10 30 40

pi0.25 0.20 0.40 0.15

25. The probability that a U.S. adult has a cell phone is 0.83. Five U.S. adults are randomly

selected. Find the probability that exactly 2 of the 5 adults has a cell phone.Show work.

Show work.

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Math 150A ProjectSpring 2013

Hey,

I need this project. its about writing in Math and doing 4 math problems

the professor gave me 2 options for the writing topic and i posted them i ned only one of them to be done

Thank you

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Math 150A Project Spring 2013 Part 1: Writing Assignment. (20pts) On Titanium you will find two options for your writing assignment. Choose and do only one. Specifics: Writing in a math class can sometimes be difficult. Here is a site that you might find helpful: https://edisk.fandm.edu/annalisa.crannell/writing_in_math/guide.html Your writing assignment must be typed or written in ink. If you decide to type it, your assignment should have 1-inch margins and you should type in Times New Roman or Arial font size 12. Feel free to write in diagrams or notations. Part 2: Calculations You must show all your work. No work or lack of work means no credit. This second part must be written using pencil only. Failure to follow directions will result in loss of points. Work that is too hard to follow or lack of organization will result in loss of points. 1. (5pts) Grain pouring from a chute at a rate of 8 3 ft min forms a conical pile whose altitude is always twice its radius. How fast is the altitude of the pile increasing at the instant when the pile is 6ft high? Differentiate by using logarithmic differentiation 2. (5pts) ? ?4 sin 2 3 6 7 5 7 x x e y x ? ? ? Choose and do only one of the following 3. (5pts) For the equation 3 12 x y x ? ? ? , find dy and ?y when x ?1and dx ? 0.01 4. (5pts) Find dy dx by implicit differentiation 2 3 x y ?3xy ? x ? 3

MAT 126 Week 2 Written Assignment

Following completion of your weekly readings, read Are You Sure It s Fat Free on page 236 of Mathematics in Our World. Gather three of your favorite packaged foods; perhaps one from each: breakfast, lunch and dinner. Use the model explained in the Are You Sure It s Fat Free to analyze, through the mathematical formula explained, the fat content and protein content from your foods. To analyze the protein content use 4 calories per gram of protein, rather than the 9 calories for grams of fat. The assignment must include (a) all math work required to answer the problems as well as (b) introduction and conclusion paragraphs. Your introduction should include three to five sentences of general information about the topic at hand. The body must contain a restatement of the problems and all math work, including the steps and formulas used to solve the problems. Your conclusion must comprise a summary of the problems and the reason you selected a particular method to solve them. It would also be appropriate to include a statement as to what you learned and how you will apply the knowledge gained in this exercise to real-world situations.

Z.K. V Arch/V Archigetis

I want simple summery as I list below exactly, one page. and find on attach the case.

Facts:a brief recitation of the relevant
facts giving rise to the dispute (this may also include a relevant statute or
legal rule and a lower court’s decision)

Plaintiff and Defendant Arguments:outline the complaint of the plaintiff
and defendant and any defenses raised

Issue:what is the essential issue before the
court (the question the court must answer); phrase in the form of a question
(e.g. does U.S. anti-discrimination law apply to U.S.-based businesses operating
outside the U.S.?)

Rule:explain the legal reason provided by
the court for its decision; note any law relied upon

Decision:who won; what was the remedy

Look at attach

make one graph

If some could make one graph from the several that I have to make, that would be great!. I really just need to understand what I need to do. thanks you! I have to turn this in before midnight of Friday 🙁

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IST 230 Exercise 16 – Graph Theory Exercises
First, read and outline the Topic 5 notes and then work on this exercise.
Read the IST degree roadmap contained in this directory.
Create a clear dependency graph of the required courses for each of the 3 IST BS options and each of the 3 SRA BS options
IST BS Options
Information Systems: Design and Development (ISDEV) Option
Information Technology: Integration and Application (ISINT) Option
Information Context: People, Organizations, and Society (ISPP) Option
SRA BS Options
Intelligence Analysis and Modeling (IAM) Option
Information and Cyber Security (ICS) Option
Social Factors and Risk (SFR) Option
Your graphs (6 of them in total) should each be a directed graph containing all required courses that shows all dependencies (prerequisites and co-requisites) clearly. Remember that a directed graph
Your goal should be to draw this graph in a way that a student can quickly and easily see all course dependencies. Think of this as a tool to help students plan their course schedules.
This is a 20-point exercise, with the possibility of 10 extra exercise credit points for a set of really excellent, clear, and user-friendly dependency graphs. The basic grading criterion for the 20 points will be accuracy and clarity of your graphs. The instructor will make this extra credit determination in consultation with the Office of Learning Initiatives and/or the IST advising staff. My criterion for extra credit will be that we deem this worthy as a student program-planning tool.
PS – I will consider even more than 10 points extra credit for a really outstanding and creatively thought out tool, which goes well beyond basic graph-theoretic ideas. Again, the instructor will make this determination in consultation with people who deal with IST curriculum issues.

MAT 126 Week 1 Discussion

All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion:

1. List the ages of twopeople in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger.

2. Find the prime factorizations of your age and the other two persons ages. Show your work listed by name and age. Make sure your work is clear and concise.

3. Find the LCM and the GCF for each set of numbers. Again, be clear and concise. Explain or show how you arrived at your answers.

4. In your own words, explain the meaning of your calculated LCM and GCF for the ages you selected. Do not explain how you got the numbers; rather explain the meaning of the numbers. Be specific to your numbers; do not give generic definitions.

5. Respond to at least two of your classmates postings. Did your classmates calculate the LCM and GCF correctly? Are their interpretations correctly applied to the ages?

Independent Variable(s), Dependent Variable Covariate Related Questions

1. Do mental health counselors with doctoral degrees earn a higher yearly income than those with masters degrees 5 years post graduation? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

2. Are patient depression scores different depending on patient s family status: single, married, or married with children? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

3. What are the effects of training group (blue, red or yellow group) and gender on work performance scores? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

4. Taking into consideration SAT scores, is there a difference in the first year GPA for students who have or have not selected a major by the end of the first year? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

5. Is there a relationship between age and hours of sleep? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

6. Does age predict acceptance rate to MBA programs? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

7. How much of the variance in annual income can be explained by years of education, and years of experience and which is a better predictor of yearly income? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

8. Is there a relationship between years of education and income? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

9. Does SAT score predict GPA at the end of Freshman year in college? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

10. Is BMI score or time spent exercising a better predictor of physical fitness scores? Provide the IV, DV, Covariate, and best method of analysis. (Points : 6)

JAM007 ONLYYYY

SEE THE FILE FOR WHAT ALL YOU NEED TO DO

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1ST JOB
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625255_1&mode=viewCh13 OnlineStat – Assessment NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625255_1&mode=viewCh14 OnlineStat – Assessment NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625254_1&mode=viewTest Ch 13 to 14 NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625255_1&mode=viewCh15 OnlineStat – Assessment NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625256_1&mode=viewCh 16 OnlineStat – Assessment NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625257_1&mode=viewTest Chapter 15 to 16 NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625258_1&mode=viewCh 17 OnlineStat – Assessment NE
https://bb.uhd.edu/webapps/blackboard/content/launchAssessment.jsp?course_id=_33085_1&content_id=_625259_1&mode=viewTest Ch 17 NE
2nd job
After completing the above you need to do “POWER POINT ASSIGNMENTS “ AND “SPSS ASSESMENTS “
VERY IMP
Don’t submit the above two assignments , you need to send the files to me and I will submitt

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JAM007

5. (Cost of internal equity) Pathos Co.’s common stock is currently selling for $23.80. Dividends paid last year were $0.70. Flotation costs on issuing stock will be 10 percent of market price.
The dividends and earnings per share are projected to have an annual growth rate of 15 percent. What is the cost of internal common equity for Pathos?
6. (Cost of equity) the common stock for the Bestsold Corporation sells for $58. If a new issue is sold, the flotation costs are estimated to be 8 percent. The company pays 50 percent of its earnings in dividends, and a $4 dividend was recently paid.

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5. (Cost of internal equity) Pathos Co.’s common stock is currently selling for $23.80. Dividends paid last year were $0.70. Flotation costs on issuing stock will be 10 percent of market price.
The dividends and earnings per share are projected to have an annual growth rate of 15 percent. What is the cost of internal common equity for Pathos?
6. (Cost of equity) the common stock for the Bestsold Corporation sells for $58. If a new issue is sold, the flotation costs are estimated to be 8 percent. The company pays 50 percent of its earnings in dividends, and a $4 dividend was recently paid. Earnings per share 5 year ago were $5.00.
Earnings are expected to continue to grow at the same annual rate in the future as during the past 5 years. The firm’s marginal tax rate is 34 percent.
Calculate of (a) internal common equity and (b) external common equity.

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jim writes down the numbers from 1 to 100. ben puts a red spot on all the even numbers and…

jim writes down the numbers from 1 to 100. ben puts a red spot on all the even numbers and heen puts a blue spot on all the multiples of 3.

what is the largest number that has a both red and a blue spot?

how many numbers have neither a blue or a red spot?

sophie puts a green spot on all the multiples of 5. how many numbers have exactly two coloured spots on them?

Joan got on her bike and went for a ride. She rode at a speed of 16 miles per hour…

Joan got on her bike and went for a ride. She rode at a speed of 16 miles per hour from her house to her sister’s house, which is in another city along the way. The two women then got into a car and traveled at a speed of 50 miles per hour to their mother’s house. The total distance from Joan’s house to her mother’s house (via her sister’s house) is 315 miles, and Joan traveled for 8 hours. How far is it from Joan’s house to her sister’s house?

JetAirways flight from Philadelphia to Boston has 350 seats. The high fare on the flight is $780 and…

JetAirways flight from Philadelphia to Boston has 350 seats. The high fare on the flight is $780 and the restricted/low fare is $500. There is ample demand for the low fare class but high fare demand is uncertain. Demand for the high fare is normally distributed with mean 150 and standard deviation of 45. Further, the customers buy low fare tickets well in advance of high fare customers.

kenman

Please make sure to follow the 6 step hypothesis testing format included below. I need this done in 10 hours from now. Please make sure to show ALL work and ALL steps in detail.

SIX STEPS FOR HYPOTHESIS TESTING

1. HYPOTHESES

State in order:

Research Hypothesis

Null Hypothesis

Alternate Hypothesis

Recall the difference between a general research hypthesis which will not be overturned by a single investigation and a simple null and alternate hypothesis.

2. ASSUMPTIONS

include:

1. measurement level of data,

2. distributions underlying the data,

3. knowledge or lack of about population characteristics

4. sample size and method,

5. sample characteristics necessary for applying the test statistic,

6. level of significance for testing

3. TEST STATISTIC (or Confidence Interval Structure)

1. structure to be used to test significance levels or set of confidence intervals (be sure to include the equations & notation)

2. special conditions to be met by statistic

4. REJECTION REGION (or Probability Statement)

Expected measure of the test statistic as generated from tables or critical valve for a confidence interval.

Yes, before you start the calculations you should inform the reader as to how the test will be used to reject of fail to reject the null hypoethesis and the critical value for making the determination.

5. CALCULATIONS (Annotated Spreadsheet)

Actual test statistic measure or confidence interval generated including specification of all additional equations used plus notation. May also include sample calculations.

Solving any problem is as much an art as a skill. From the skill side you should break the problem down into small parts or modules, these you will then want to continually check using sample calculations, your hand calculator, and other methods to make certain that no errors occur in the solution. Remeber, in the working world no one will check your work unless a tragic error occurs (then of course it’s too late, so instead you must develop skills for continually critiquing whatever you are doing). Breaking problems into smaller parts not only helps in error checking, but also enables you to understand how the data is being manipulated and makes the work much less intimidating. This can provide for further critiquing of the method selected and data set being used. Finally, sample calculations help to insure that calculations are being properly preformed and again provides additional insight as to the manner in which the statistic manipulates the data.

Problem solving is also an art. There are very elegant ways of laying out a task which even to the most uninformed reader makes it look simple! And in fact any problem broken down into its constituent parts is quite simple. Second, careful constrution of a spreadsheet enables it to solve more than just the problem at hand. Simple adjustments to the number of rows enables the number of cases to rapidly be altered and an additional problem solved. Finally, as always consider your audiance. Have you provided the clarity that enables others (sometimes experts, sometimes not) to rapidly understand what is being preformed and how. How useful will this work be to you in six months? Will you still understand it? Finally, would this look good in a portfolio? Remeber, annotations are very important.

6. CONCLUSIONS

Statement of results or the acceptance, or rejection of the null hypothesis & future direction of research.

Should include summary of results in tabular, graphical, or mapped form, plus a discussion of where this research has led you.

An answer without proper presentation and discussion is of limited use. All too often textbooks concentrate on right numbers not full presentation of results and thoughtful discussion of where to go next. Again, know your audiance. What helps them grasp the implications of all the difficult work that you have preformed? Ronald Reagan never claimed to be a genius, but he certainly was a master at communicating what he did know. On the other hand, few if any of us will be reading any treaties by Albert Einstien any time soon.

Jemm’y BAkery makes two types of birthday cakes: yellow cake, which sells for $25, and…

Jemm’y BAkery makes two types of birthday cakes: yellow cake, which sells for $25, and strawberry cake which sells for $35. Both cakes are the same size, but the decorating and assembly time required for the yellow cake is 2 hours, while the time is 3 hours for the strawberry cake. There are 450 hours of labor available for production. How many of each type of cake should be made to maximize revenue?

Java lab(s) needed.

I need u to do these labs: 9 and 10. here are files given. in the pdf, navigate to lab 9 and 10, directions are there at the bottom in specification. the panels and all that is given, i need you to fill in the blanks in them and make the program work.

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//Name______________________________ Date_____________
import javax.swing.*;
import java.awt.*;
public class Display10 extends JPanel
{
private JLabel label;
private int last, next;
public Display10()
{
setLayout(new GridLayout(1, 1));
next = 5;

label = new JLabel(“5”);
label.setFont(new Font(“Serif”, Font.BOLD, 100));
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(Color.blue);
add(label);
}
private void pickNext()
{

/************************/
/* */
/* Your code goes here. */
/* */
/************************/

}
public boolean guessHigh()
{
pickNext();
return next > last;
}
public boolean guessLow()
{
pickNext();
return next

karni.shekhawat math hw

Two seperate quizes to be completed via instant messages one question at a time with a time limit of 5 mins per question.

15 stats questions

15 infiante math questions

Must get an A in BOTH in order to pay full amount

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Mat210-online graphs for GHA Week 7/8 that don’t appear on the GHA.
1. 2.

3. 4.

5. 6.

7. 8.

9.

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for kalfree

1.Simplify, showing your steps. Tell the property you used in each step.
2(a + 4) + -8 (Points : 4)
Question 2.2.Simplify, showing your steps. Tell the property you used in each step. (Points : 4)
Question 3.3.Simplify, showing your steps. Tell the property you used in each step.
(Points : 3)
Question 4.4.Simplify, showing your steps. Tell the property you used in each step.
(Points : 3)
Question 5.5.Simplify, showing your steps. Tell the property you used in each step.
1 (-n + n) (Points : 3)
Question 6.6.Simplify, showing your steps. Tell the property you used in each step.
(Points : 3)

Just need some help

Develop a plan for the distribution of salary increases. Suppose you are employed in a local industry, and your supervisor has assigned you to distribute annual raises that must average 4% per department among 6 team members. No team member can get exactly 4%, and the raise must be at least 2% and no more than 6%.

You may establish your own criteria for distributing the raises, but you are given the years of experience and the rating on annual performance reviews for each member. A performance rating of 1 is the lowest rating possible and a rating of 5 is the highest.

Employee 1 has 4 years experience, a performance rating of 4, and a salary of $28,500.

Employee 2 has 3 years experience, a performance rating of 4, and a salary of $28,500.

Employee 3 has 10 years experience, a performance rating of 4, and a salary of $32,700.

Employee 4 has 7 years experience, a performance rating of 3, and a salary of $31,400.

Employee 5 has 15 years experience, a performance rating of 3, and a salary of $34,500.

Employee 6 has 12 years experience, a performance rating of 5, and a salary of $32,400.

Decide the amount of increase for each member.

1. Prepare your recommendations for your supervisor that includes the following:

  1. A table showing the original salary, the amount of increase, the new salary, and the percent of increase for each employee.

  2. Show the calculations to verify that the total amount of increases is exactly 4% of the total original salaries except for rounding discrepancies.

  3. Will the percent of change also average 4%? Why or why not?

  4. What other factors could have been used to calculate pay raise?

  5. Many feel that pay raises should reflect seniority only? Do you agree? Why or why not

2. The interest formula shows how interest, rate, and time are related. It gives you a way of finding one of these values if the other three values are known. Even though you try to be careful in your calculations, there will always be that occasion when you make an error and end up with an incorrect answer. You can avoid such errors by first predicting what a reasonable answer might be by estimating. As an example, if you have an 11.2% interest, you could use 11% to estimate what the correct result would be.

Search the internet to find an application of simple interest that you find interesting, that you encounter on a daily basis or that you find in your profession.

  1. How could you avoid an error by using a pre-estimation? Present this application to the class and explain why you choose the example.

  2. In what ways do you use estimating in your everyday life?

Include the URL for the site you used. Do not copy the text in the site verbatim. You should summarize your findings.

Respond

This section lists options that can be used to view responses.

An invoice clerk receives a bill of Ksh.3750 for 10 blank ledger books and 3 filing trays. After…

An invoice clerk receives a bill of Ksh.3750 for 10 blank ledger books and 3 filing trays. After discovery that the order had been written out incorrectly, the clerk and the supplier agree that the clerk returns 3 of the ledger books. The supplier sends an extra filing tray. Given that there will be an extra Ksh.250 to pay and there is a 10% discount for orders of 10 ledger books or more, you are required:

(i) Derive linear equations in X and Y to represent the component of the original and revised invoices, where x is the price of the single ledger book and y is the price of a filing tray.
(ii) Solve the equations for x and y

It is a Lab for a Stat243 on excel

The salaries in a certain population are normally distributed with mean $57,873 and standard deviation $3,427.

  1. Find the probability that a person has a salary below $48,000.

  2. Find the probability that a person s salary is between $50,000 and $60,000.

  3. Find the probability of seeing a salary over $63,500.

  4. Find the 90thpercentile of the salaries.

  5. Find the 25thpercentile of the salaries.

  6. Do you think that salaries would follow a symmetric, bell-shaped distribution? In your own words, ex- plain why or why not.

Format all of your answers to6 decimal places(in order to show that you used Excel, and not the tables).

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You must do your own work. Make sure to answer the final questions in your own words. Do not simply copy the examples. The real assignment is at the end. In Excel, normal probabilities are found using the NORMDIST function. Click in a blank cell where you want your answer to appear, click on the “insert function” icon, fx, and then select NORMDIST from the statistical menu. This will give you the cumulative probability, that is, the area under the curve from negative infinity to the x value you enter. You may need to subtract the answer from 1, or subtract two answers, depending on the problem. For example, suppose ? ? 8 and ? ? 2 . To compute P(X ? 10) ,you would enter =NORMDIST(10,8,2,1) Note that the last argument of the NORMDIST function should always be “1”. To find P(X ? 10) in the same example you would enter =1-NORMDIST(10,8,2,1) To find P(10 ? X ? 12) , you would enter = NORMDIST(12,8,2,1)-NORMDIST(10,8,2,1) Lab 4: The Normal Distribution Stat 243 Fall 2013 due November 21
In Excel, normal percentiles are found using the NORMINV function. Click in a blank cell where you want your answer to appear, click on the “insert function” icon, fx, and then select NORMINV from the statistical menu. This will give you the x value corresponding to the desired cumulative probability. In the previous example, suppose we wanted to find the 90th percentile of the distribution. Then we would enter =NORMINV(.9,8,2) Lab 4 (due Thursday, November 21) The salaries in a certain population are normally distributed with mean $57,873 and standard deviation $3,427. 1. Find the probability that a person has a salary below $48,000. 2. Find the probability that a person’s salary is between $50,000 and $60,000. 3. Find the probability of seeing a salary over $63,500. 4. Find the 90th percentile of the salaries. 5. Find the 25th percentile of the salaries. 6. Do you think that salaries would follow a symmetric, bell-shaped distribution? In your own words, explain why or why not. Format…

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Joeman

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Complete the following in WileyPLUS:* Problem 10.14* Problem 11.20* Problem 11.24* Problem 12.24* Problem 13.11 
Question 1
Briarcrest Condiments is a spice-making firm. Recently, it developed a new process for producing spices. The process requires new machinery that would cost $1,941,876. have a life of five years, and would produce the cash flows shown in the following table.
Year
Cash Flow
1
$494,405
2
-222,595
3
744,262
4
705,699
5
824,242
What is the NPV if the discount rate is 16.94 percent? (Enter negative amounts using negative sign e.g. -45.25. Round answer to 2 decimal places, e.g. 15.25.)
NPV is
$
Question 2
Archer Daniels Midland Company is considering buying a new farm that it plans to operate for 10 years. The farm will require an initial investment of $12.10 million. This investment will consist of $2.90 million for land and $9.20 million for trucks and other equipment. The land, all trucks, and all other equipment is expected to be sold at the end of 10 years at a price of $5.16 million, $2.09 million above book value. The farm is expected to produce revenue of $2.05 million each year, and annual cash flow from operations equals $1.87 million. The marginal tax rate is 35 percent, and the appropriate discount rate is 9 percent. Calculate the NPV of this investment. (Round intermediate calculations and final answer to 2 decimal places, e.g. 15.25.)
NPV
$
The project should be
Question 3
Bell Mountain Vineyards is considering updating its current manual accounting system with a high-end electronic system. While the new accounting system would save the company money, the cost of the system continues to decline. The Bell Mountain’s opportunity cost of capital is 16.4 percent, and the costs and values of investments made at different times in the future are as follows:
Year
Cost
Value of Future Savings (at time of…

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Database Development

Write a two to three (2-3) page paper in which you:

  1. Recommend at least three (3) specific tasks that could be performed to
    improve the quality of datasets, using the Software Development Life Cycle
    (SDLC) methodology. Include a thorough description of each activity per each
    phase.
  2. Recommend the actions that should be performed in order to optimize record
    selections and to improve database performance from a quantitative data quality
    assessment.
  3. Suggest three (3) maintenance plans and three (3) activities that could be
    performed in order to improve data quality.
  4. From the software development methodologies described in the article titled,
    “Process-centered Review of Object Oriented Software Development Methodologies,”
    complete the following.

    1. Evaluate which method would be efficient for planning proactive concurrency
      control methods and lock granularities. Assess how your selected method can be
      used to minimize the database security risks that may occur within a multiuser
      environment.
    2. Analyze how the verify method can be used to plan out system effectively and
      ensure that the number of transactions do not produce record-level locking while
      the database is in operation.

I have attached the PDF File for the assignment

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Joeman ONLY!

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Essentials of Applied Quantitative Methods for Health Services Managers
Chapter 10 Homework
10-2: In the clinic renovation example on pages 201-205, what if management thinks that the likelihood of current demand remaining is 30%, the likelihood of a moderate increase is 25%, and the likelihood of a large increase is 45%? What should they do, according to the expected total payoff? (20 points)
10-3: In the clinic renovation example, what if management thinks that the likelihood of a moderate increase is twice as likely as either current demand remains or high demand occurring? What should they do? (10 points)
Chapter 11 Homework
Use the following worksheet Table 11-1 to answer the subsequent questions:
11-1: How much did it cost, per person screened, for the initial cholesterol testing? Remember that each provider on site incurs costs to travel form the health department to the site and back. (5 points)
11-2: How much did it cost per person who participated in the special intervention as well as the initial screening? (5 points)
11-3: What is the cost per percent reduction in cholesterol for the initial screening only and for the initial plus special group? (5 points)
11-4: What is the marginal cost per percent additional reduction in cholesterol attributable to the special intervention? (5 points)
11-5: How does this compare with the lifetime coronary heart disease cost savings from reducing serum cholesterol? (5 points)
Chapter 11 Extra Credit (6 points):
Identify possible bases to use for expressing the following resources not expressed per unit of service:
Administrative and supply costs
Equipment
New space
Name:
Date:
Course and Section:
Instructor:

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JOEMANNN

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Essentials of Applied Quantitative Methods for Health Services Managers
Chapter 12 Homework
12-1: Using the information in Table 12-7 on page 249, construct a PERT network and answer each of the following questions (10 points):
What is the expected project completion data? (5 points)
What is the scheduled start and completion date for each activity? (5 points)
Which activities are on the critical path? (5 points)
How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project? (5 points)
Name:
Date:
Course and Section:
Instructor:

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Since its removal from the banned substances

Since its removal from the banned substances list in 2004 by the World Anti-Doping Agency, caffeine has been used by athletes with the expectancy that it enhances their workout and performance. Many studies have been conducted to assess the effect of caffeine on athletes, but few look at the role ti plays in sedentary females. Researchers at the University of Western Australia conducted a test in which they determined the rate of energy expenditure (kilojoules) on 10 healthy, sedentary females who were non-regular caffeine users. Each female was randomly assigned either a placebo or caffeine pill (6mg/kg) 60 minutes prior to exercise. The subject rode an exercise bicycle for 15 minutes at 65% of their maximum heart rate, and the energy expenditure was measured. The process was repeated on a separate day for the remaining treatment. The mean difference in evergy expenditure (caffeine-placebo) was 18 kJ with a standard deviation of 19 kJ.

1) Describe the sample data set and identify the variable being measured

2)Which type of hypothesis test would be most appropriate for this set of data?

3)Describe the population from which your sample was obtained. What should be the value of the population parameter and why?

4) Do you think your data comes from a random sample? Why/why not?

5) What other condition must you check in order to perform the hypothesis test?

6) Describe the null and alternative hypothesis for your hypothesis test against the value

7) Determine the test statistic

8) Calculate the p-value for this hypothesis test

9) State your conclusion from this hypothesis test. What happens to the null hypothesis?

Joeman Thanks!

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Essentials of Applied Quantitative Methods for Health Services Managers
Chapter 5 Homework
5-1: Indicate the different ways an individual could forecast his or her weight 10 years from now. Do these methods change based upon whether the individual is 5, 14, 24, or 45 years old? If so why? (15 points)
5-2: Using the assumption of the past predicts the future write an equation for the weight forecast. Do the same for the assumption of cause and effect. How does the concept of error play into each? (15 points)
5-3: Provide examples from the field of health services management of phenomena that are probably best forecasted using genius forecasting. Why? (10 points)
5-4: Determine the number of weekdays and weekend days in this month? Compare this with the equivalent numbers of next year and last year. What phenomenon forecasted by the health services manager might be influenced by variation in the number and types of days in a month? Be specific and cite examples. (15 points)
5-5: Calculate the expected number of infant needing neonatal intensive care in a hospital if the historic rate is 5 per 1000 births, and you expect 575 births this year. (5 points)
Chapter 6 Extra Credit (12 points)
Using the Northern College Health Services visit volume in Appendix 6-1 on page 113, provide a forecast of the number of clinic visits for week XX using:
http://books.google.com/books?id=n1DUoVfN15YC&lpg=PA112&ots=9P4Fgpxd1s&dq=Northern%20College%20Health%20Services%20visit%20volume%20in%20Appendix%206-1&pg=PA113#v=onepage&q&f=falsehttp://books.google.com/books?id=n1DUoVfN15YC&lpg=PA112&ots=9P4Fgpxd1s&dq=Northern%20College%20Health%20Services%20visit%20volume%20in%20Appendix%206-1&pg=PA113#v=onepage&q&f=false
6-1: Extrapolation based upon Average Change
6-2: Extrapolation based upon a Confidence Interval
6-3: Extrapolation based upon Average Percent Change
6-4: Extrapolation based upon Moving Averages
6-5: Extrapolation based upon Exponential Smoothing
6-6:…

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JOEMAN

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Essentials of Applied Quantitative Methods for Health Services Managers
Chapter 14 Homework
14-1: Do a force field analysis (FFA) on the driving and restraining forces that influence your ability to do well in a specific academic course. One driving force may be “your desire to learn”. One restraining force may be “your need to devote time to other work.” (25 points)
Chapter 15 Homework
15-1: Using the following data set on hospital admissions, define the service area for Hospital A, based only on quantitative factors (Table 15-5). (10 points)
15-2: Compute the target bed capacity of Cheswick Community Hospital ten years from now, based on the following information: (20 points)
Assume current population of Cheswick Community Hospital’s service area = 145,000
Assume projected population increase of 8% in service area over next 10 years.
Assume a future admission rate per 1000 of 102.
Assume average length of stay of 4.7 days in ten years. Assume a target occupancy rate of 78% in 10 years.
Chapter 14 Extra Credit (5 points):
Match the type of chart with its intended use ( you can write the letter of the chart by the intended use below)
A. Run Chart
B. Pareto Chart
C. Control Chart
D. Flow Chart
E. The Scatter Diagram
Intended Use:
1. _______ Indicates upper and lower limits. Variation outside of these limits indicates a significant system change
2. _______ This chart is used to illustrate patterns of data collected over time; intended to indicate patterns
3. _______Used to illustrate the relationship between two variables. This type of chart can suggest associative properties.
4. _______Used to describe what is the process and the system and how it works.
5. _______This is a vertical histogram the lists the most common problems or problem causes in descending order; based on the premise that 80% of the trouble comes from 20% of the problem.
Chapter 15 Extra Credit: (8 points)
Use the following dataset for questions…

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Joeman Only!

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For the data in Table 7-1:
7-1: Calculate the regression equation for the entire range of data. (5 points)
7-2: Is this a usable regression line? (2 points)
7-3: Develop two other regression lines based on 12, 24, 30, 36 and 46 months of data. (10 points)
7-4: Which line would you use and why? (8 points)
Name:
Date:
Course and Section:
Instructor:

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JOEMAN :)

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Essentials of Applied Quantitative Methods for Health Services Managers
Chapter 13 Homework
13-1: A representative of a reputable financial services company has approached you as manager of a four-person group of anesthesiologists with an opportunity to purchase a 10-year annuity due for each member of the group. The annuity due would pay $40,000 each year beginning 5 years from now (i.e., at time = 5). What is the most you would be willing to pay now, per each physician, for this investment? Assume an appropriate discount rate of 7%. (10 points)
13-2: The hospital’s marketing and finance departments have just provided you, as chief financial officer, with pro forma income statements for your proposed sonogram center. These statements appear in the following.
Pro forma Income Statement (000)
Time t + 1 t + 2 t + 3 t + 4
Service Revenues (net) $425 $500 $580 $700
Expenses $400 $450 $525 $600
Depreciation Expense $35 $35 $35 $35
Net Income ($10) $15 $20 $65
What is the project’s IRR? Assume an initial investment of $175,000 and an appropriate discount rate of 6%. The hospital is operated as a not-for-profit facility. (10 points)
13-4: What are some of the factors that can influence the riskiness of projects (investments) in healthcare organizations? (5 points)
Chapter 13 Extra Credit: (6 points)
Calculate the IRR and MIRR for the following series of cash flows:
Year Cash Flow
CY ($450,000)
CY + 1 $79,000
CY + 2 $125,000
CY + 3 $140,000
CY + 4 $135,000
CY + 5 $45,000
Assume a prevailing discount rate of 7%
Name:
Date:
Course and Section:
Instructor:

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Joeman!!! Help!!!

3-1: Develop a general systems flow chart that describes the process of filling a car with gasoline. After start has as the first process Arrive at Gas Station. Immediately before stop have as the last process Leave Gas Station. (10 points)

3-2: Using a general systems flow chart design a system for arrivals at an emergency room of a hospital. (10 points)

4-1: You decide to invest $100,000 in a program that is guaranteed to grow by 2.5% for each of the next 5 years. At the end of the 5 years, how much is your investment worth (5points)

4-2: What is the effective annual rate of an investment that pays 6% for 5 years, compound semiannually? (5 points)

4-3: What is the present value of a single cash flow of $25,000 received at the end of 10 years, if we assume a discount rate of 5% annually With a discount rate of 7% (10 points)

IQ

Paper for stats

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MAT 151
M6A2
20 Points
Your response to this assignment should be a minimum of 3 pages, double-spaced, in 12-point font and should be clear, accurate, precise, and in-depth.. You must list your sources (Web site addresses, etc.) either throughout your paper or at the end.
As a first step to this assignment, compose a paragraph where you state what you already know about the topic of IQ (intelligence quotient). State instances where you have used the term or have heard/seen it used. As a conclusion to the paragraph, tell some things that you don’t specifically know about the topic, but would like to find out.
Research the variable IQ (intelligence quotient). What is it? What does it mean? How is it measured? Is there a scale involved? When is it measured? Does a person’s IQ change over time? Is IQ a continuous or discrete variable (explain why). Come to understand the concept.
What is the current mean IQ? Are there any discrepancies in the reporting of this value? What do you think might be the cause of such discrepancies?
What is the standard deviation? Interpret/explain what this value means. Are there any discrepancies in the reporting of this value? What do yo think might be the cause of such discrepancies?
Do IQ scores have a normal distribution? Statistically, what is the significance of this?
What IQ value would be represented by three standard deviations above the mean? (Mean + 3SD’s = ?) Tell which value you’re using for the mean and which value you’re using for the sd and why you have selected these values.
Using the appropriate table in your text, determine the percentage of the population that has an IQ greater than 140. Show the work (z-score conversion, etc.). Cross-reference your calculated value with what the research says. How close are the values? What might be a cause for any discrepancy?
Discuss how certain IQ values classify people into categories. What are the implications for such labels?
Are there any assumptions associated with…

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Linear programming

A small winery manufactures 2 types of wine, Burbo’s Better (X) and Burbo’s Best (Y). Burbo’s Better results in profit of $4 per quart, whereas Burbo’s Best has profit of $5 per quart. Two production workers mix the 2 wines. It takes a production worker 2 hours to mix a quart of the Better and 3 hours to mix a quart of the Best. Each worker puts in a 9 hour day. The quantity of alcohol than can be used to fortify the wine is limited to 24 ounces daily. Six ounces of alcohol are added to each quart of Burbo’s Better and 3 ounces are added to Burbo’s Best. Give the LP Model and use both the graphical method and Excel to find the optimal solution.

IQO The Highway Loss Data Institute routinely collects data on collision coverage claims. Collision…

IQO
The Highway Loss Data Institute routinely collects data on collision coverage claims. Collision coverage claims insures against physical damage to an insured individual s vehicle. The data represents random collision coverage claims based on data obtained from the Highway Loss Data Institute for 2007 models. Find and interpret the first, second, and third quartiles for collision coverage claims.

$6751 $9908 $3461 $21,147 $2332 $2336
$189 $1185 $370 $1414 $4668 $1953
$10,034 $735 $802 $618 $180 $1657

Quartile 1: _____
Quartile 2: _____
Quartile 3: _____
Interpretation (Explain):

Intro statistics homework

1. Reading readiness of preschoolers from an impoverished neighborhood (n = 20) was measured using a standardized test. Nationally, the mean on this test for preschoolers is 30.9, with SD = 2.08.

a. Children below the 30th percentile (in the bottom 30%) are in need of special assistance prior to attending school. What raw score marks the cut-off score for these children?

Z-score =-2.75X = 30.9 + 2.08 (-2.75) = 25.18

Cut Off is 25.18

b. What percentage of children score between 25 and 28.5?

Z= (25-30.9) /2.08= -2.83 Z= (28.5-30.9) /2.08= -1.15

-2.83+-1.15=-3.98 50-3.98=46.02

46.02% score between 25 and 28.5

c. How many children would we expect to find with scores between 28 and 31.5?

Z= (28-30.9) /2.08= -1.39 Z= (31.5-30.9) /2.08= .28

-1.39+. 28= -1.11 Z-score= 2.29

X= 30.9 + 2.08 (2.29) = 35.66

36 Children have scores between 28 and 31.5

d. Children in the top 25% are considered accelerated readers and qualify for different placement in school. What raw score would mark the cutoff for such placement?

Z-score= 2.81X= 30.9 + 2.08(2.81) = 9.74

Cut-Off is 9.74

2. Age at onset of dementia was determined for a sample of adults between the ages of 60 and 75. For 15 subjects, the results were X = 1008, and (X-M)2 = 140.4. Use this information to answer the following:

a. What is the mean and SD for this data

M = 1008 /15 M = 67.2 SD= 140.4

b. Based on the data you have and the Normal Curve Tables, what percentage of people might start to show signs of dementia at or before age 62?

(62-67.2)

0.037

c. If we consider the normal range of onset in this population to be +/-1

Z-score from the mean, what two ages correspond to this?

d. A neuropsychologist is interested only in studying the most deviant portion of this population, that is, those individuals who fall within the top 10% and the bottom 10% of the distribution. She must determine the ages that mark these boundaries. What are these ages?

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Intro statistics

This is question 12

# 12 is missing this information at the end “width of the interval to be 0.1 or less. The minimum sample size required is”?

I need answers to be concise and annotated details should contain every step used to resolve the homework. Just do it as if i was a kid.

Thanks

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Part 1.pdf
__MACOSX/._Part 1.pdf
Part 2.pdf
__MACOSX/._Part 2.pdf
Part 3.pdf
__MACOSX/._Part 3.pdf
Part 4.pdf
__MACOSX/._Part 4.pdf

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Linear Programming Problem

XYZ Lawn Trimmer Company produces two types of lawn trimmers – a gas model and an electric model. The company has two manufacturing facilities: San Diego and Atlanta. Both plants have the capability to produce both of the models but the manufacturing and transportation costs are different.

San Diego Atlanta Demand
Gas $125 $100 225
Electric $115 $95 275

Capacity 400 units 200 units
Storage Space 10,000 sq ft 5,000 sq. ft
Leased WH Cost $5 per sq. ft $4 per sq ft.
Leased WH Capacity 15,000 sq ft $18,000 sq ft.

The company has just received a contract from a large retailer for the production of 225 gas models and 275 electric models. The San Diego plant can produce up to 400 units and the Atlanta plant can produce up to 200 units. Because the manufacturing facilities have limited storage space, there is concern that space will have to be rented to store the finished products. The San Diego plant has 10,000 sq ft available on site, and the Atlanta plant has 5,000 sq ft on site. After this space is filled, off-site space will have to be rented. All of the models require about the same square footage (about 30 square feet), but the price for rental space in each of the locations is different. The rental price in San Diego is $5 per square foot and the price in Mexico is $4 per square foot. There are 15,000 sq ft available in San Diego and 18,000 sq ft available in Atlanta.

Formulate a linear programming model to minimize total cost. Be sure to define your decision variables. Determine how many of each type will be manufactured in San Diego and Atlanta, and also determine if any additional storage space is needed.

linear math hw

Do these selected problems from the text that is included

3.1/ 1 -5

3.2/1

3.3/skip pp. 95 104

3.4/1, 2, 3, some; 4 , 5, 6, 7, 9, 10, 12 16

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Undergraduate Texts in Mathematics Serge Lang Introduction to Linear Algebra Second Edition • Springer
Springer New York Berlin Heidelberg Hong Kong London Milan Paris Tokyo Undergraduate Texts In Mathematics Editors s. Axler F. W. Gehring K. A. Ribet
Springer Books on Elementary Mathematics by Serge Lang MATH! Encounters with High School Students 1985, ISBN 96129-1 The Beauty of Doing Mathematics 1985, ISBN 96149-6 Geometry: A High School Course (with G. Murrow), Second Edition 1988, ISBN 96654-4 Basic Mathematics 1988, ISBN 96787-7 A First Course in Calculus, Fifth Edition 1986, ISBN 96201-8 Calculus of Several Variables, Third Edition 1987, ISBN 96405-3 Introduction to Linear Algebra, Second Edition 1986, ISBN 96205-0 Linear Algebra, Third Edition 1987, ISBN 96412-6 Undergraduate Algebra, Second Edition 1990, ISBN 97279-X Undergraduate Analysis, Second Edition 1997, ISBN 94841-4 Complex Analysis, Fourth Edition 1999, ISBN 98592-1 Real and Functional Analysis, Third Edition 1993, ISBN 94001-4
Serge Lang Introduction to Linear Algebra Second Edition With 66 Illustrations Springer
Serge Lang Department of Mathematics Yale University New Haven, CT 06520 U.S.A. Editorial Board S. Axler Department of Mathematics Michigan State University East Lansing, MI 48824 U.S.A. K.A. Ribet Department of Mathelnatics University of California at Berkeley Berkeley, CA 94720-3840 U.S.A. F. W. Gehring Department of Mathematics University of Michigan Ann Arbor. MI 48019 U.S.A. Mathematics Subjects Classifications (2000): 15-01 Library of Congress Cataloging in Publication Data Lang, Serge, 1927-Introduction to linear algebra. (Undergraduate texts in mathematics) Includes index. 1. Algebras, Linear. I. Title. II. Series. QA184.L37 1986 512′.5 85-14758 Printed on acid-free paper. The first edition of this book was published by Addison-Wesley Publishing Company, Inc., in 1970. Š 1970, 1986 by Springer-Verlag New York Inc. All rights reserved. This work may not be translated or…

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linearization of 2nd order differential equations

can anyone help with these problems?

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In week 4, we showed how to set up the second order difierential equation which describes the motion of the peadulum. Unfortunately, the di$erential quation is nonlinear, so at that time, we linearized about 0 :0 which mealls that the solution will be good only for small angles. Recatl that the differentia,l we discussed in week 4 is #.*X+fsin(d):o Fbr our project, we will let m : t, L : 1, c : 0.5, and recall g : 9.8. Therefore, our difierential equation is &g m + r.u#* e.8sin(o) : Q 1) (10 pts) Show the steps in using the change ofvariables to convert the above nonlinear, seond order differential equation (the one with mrmbe.rs) to the fust order system dr dt:g y : *g.8 sin(r) -0.5y dt fi T 0 a: f
e) (5 pts) Lhearize the nonlinear system about the critical point (n,0) and determine stability. This means to actually write down the linearized system about (z’,0) (so you will need to find partial derivatives and evaluate at, r: zr and U: A), and theu use the eigenvalues of the coefficient rnatrix to determine stability. d) (5 pts) tinearize the aonlinear systemn about the critical point (22r,0) and determine stability. This means to actually write dovrn the linearized systern about (2zr,0) (* yo* will need to fiad partial derinatives and erialuate at s : 2r and g : 0), and then use the eigenvalues of the coefficient matrix to determine stability.
4) (20 points) a) (5 pts) ferify that (0,0), (o,0), and (2r,0) are dl critical points of the first order system (indeed, all (mr,0) will be critical points). b) (5 pts) Linearize the uonlinear systenr about the critical point (0,0) and determine stability” This means to actually write down tbe linearized system about (0,0) (so 1’ou will need to find partial derirnatives and evaluate at s:0 and U:0), and then use the eigeavalues of the coefficient matrix to determine stability.
3) (10 pts) I used NumSysDE.:uncd to numerically solve the difierential equation with the given initial conditions and then created the graphs of…

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Linear equations

In 2007 there were 740 students enrolled in an online training program, and in 2010 there were 998 students enrolled in the program. Let y be enrollment in the year x, where x=0 represents the year 2007.

(a)

Which of the following linear equations could be used to predict the enrollment y in a given year x, where x=0 represents the year 2007? Explain/show work.

A.

y=258x + 224

B.

y=258x + 740

C.

y=86x + 740

D.

y=86x + 998

(b)

Use the equation from part (a) to predict the enrollment for the year 2014. Show work.

(c)

Fill in the blanks to interpret the slope of the equation: The rate of change of enrollment with respect to time is _________________ per ___________________. (include units of measurement).

Linear Algebra h.w! I have the questions

Linear Algebra h.w! I have the questions, I need answers and explanation of how they got the answer

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1. Evaluate the determinant of the following matrices 0BB@ 3 3 0 5 2 2 0 ??2 4 1 ??3 0 2 10 3 2 1CCA 0@ ??3 0 7 2 5 1 ??1 0 ??3 1A 2. Use Cramer’s rule to solve the system x – 4y + z = 6 4x – y + 2z = -1 2x + 2y – 3z = -20 3. Find a unite vector in the direction of V and in the opposite direction. v = (3;??2; 4; 1) 4. Let u = (1; 2; 3) v = (??1; 4; 0) and w = (??2; 1; 5) (a) (u v)w = (b) u v = (c) u (v w) 5. Find the distance between u = (9; 4; 1; 7; 3) and v = (??1; 4; 0;??3; 9) 6. Find the cosine of the angle between the vectors (6; 2; 5; 9) and (??3; 1; 4; 0) 7. Find a unit vector orthogonal to the vectors v = (1;??1; 1; 2) u = (2;??1; 0; 1), w = (1; 3;??1; 0) 8. Let u = (??2; 6; 4) and a = (2;??1; 0). Find: projau =
9. Find vector and parametric equation of the plane containing the point u = (??1; 0; 1) and is parallel to the vectors v1 = (0; 1; 1) and v2 = (1; 0; 1). 10. Find the equation of the plane that passes through the points (0; 0; 1), (1; 0; 0) and (0; 1; 0). 11. Find the parametric equation of the plane that passes through the point (0; 0; 1) and is parallel to the vectors (0; 1; 0) and (0; 0; 1). 12. Are the vectors u; v;w form orthogonal set ? If you do not explain your answer you will receive 0 points. u = (1; 1; 1; 1) , v = (1;??1; 1;??1) w = (3;??3; 0; 0) 13. Write equation to the plane that pass through the points P(1; 0; 4), Q(??1; 4; 3), R(2; 6;??2). 14. Find the parametric equation of the line that passes through the point (2; 1; 3) and is parallel to the vector (1; 0;??5) 15. Decide if the planes 3x??y+z = 4 and y??x??2z = 2 are perpendicular. 16. Find the area of the triangle with vertices (0; 0; 1), (1; 0; 0) and (0; 1; 0). 17. Decide if the the set of vectors are linearly independent. (a) v1 = f(1; 2; 3); v2 = (1;p2;p3); v3 = (1;p5; 3); v4 = (0;??1; 2)g (b) u1 = f(1; 2; 3); u2 = (4; 5; 6)g (c) f(w1 = 1; 0; 0);w2 = (0; 1; 1);w3 = (0;??1; 1)g 18. Determine if the following functions form linearly independent set (a) S = fex; e3xg (b) S =…

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Linear programming with excel and math skills Number 2

Use Solver to set up and solve problem No. 32, page 125 of your textbook. Make sure to embed your formulation to the Linear Programming problem within your Excel solution. This problem is a classic transportation problem application where locations 1 and 2 serve as the supply nodes , and locations 3, 4, 5 and 6 serve as the demand nodes . In addition to the typical supply and demand constraints that you need to include, make sure to also account for the constraints which will ensure that locations 3, 4, 5, and 6 each receive at least 5 cars.

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linear math hw

start at excerise 1.4 question number four and finish all of the problems. The list of questions is included at a picture and the text book is included as a pdf.

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Undergraduate Texts in Mathematics Serge Lang Introduction to Linear Algebra Second Edition • Springer
Springer New York Berlin Heidelberg Hong Kong London Milan Paris Tokyo Undergraduate Texts In Mathematics Editors s. Axler F. W. Gehring K. A. Ribet
Springer Books on Elementary Mathematics by Serge Lang MATH! Encounters with High School Students 1985, ISBN 96129-1 The Beauty of Doing Mathematics 1985, ISBN 96149-6 Geometry: A High School Course (with G. Murrow), Second Edition 1988, ISBN 96654-4 Basic Mathematics 1988, ISBN 96787-7 A First Course in Calculus, Fifth Edition 1986, ISBN 96201-8 Calculus of Several Variables, Third Edition 1987, ISBN 96405-3 Introduction to Linear Algebra, Second Edition 1986, ISBN 96205-0 Linear Algebra, Third Edition 1987, ISBN 96412-6 Undergraduate Algebra, Second Edition 1990, ISBN 97279-X Undergraduate Analysis, Second Edition 1997, ISBN 94841-4 Complex Analysis, Fourth Edition 1999, ISBN 98592-1 Real and Functional Analysis, Third Edition 1993, ISBN 94001-4
Serge Lang Introduction to Linear Algebra Second Edition With 66 Illustrations Springer
Serge Lang Department of Mathematics Yale University New Haven, CT 06520 U.S.A. Editorial Board S. Axler Department of Mathematics Michigan State University East Lansing, MI 48824 U.S.A. K.A. Ribet Department of Mathelnatics University of California at Berkeley Berkeley, CA 94720-3840 U.S.A. F. W. Gehring Department of Mathematics University of Michigan Ann Arbor. MI 48019 U.S.A. Mathematics Subjects Classifications (2000): 15-01 Library of Congress Cataloging in Publication Data Lang, Serge, 1927-Introduction to linear algebra. (Undergraduate texts in mathematics) Includes index. 1. Algebras, Linear. I. Title. II. Series. QA184.L37 1986 512′.5 85-14758 Printed on acid-free paper. The first edition of this book was published by Addison-Wesley Publishing Company, Inc., in 1970. Š 1970, 1986 by Springer-Verlag New York Inc. All rights reserved. This work may not be translated or…

Looking at the descriptives (first information), do you see differences in the mean alcohol

1.Looking at the descriptives (first information), do you see differences in the mean alcohol contents for the three levels of quality? Explain.
2.Looking at the Test for Homogeneity of Variances (Levene Statistic), is it reasonable to proceed with the ANOVA? Is the assumption met, or violated? How do you know?
3.Looking at the results of the ANOVA, is there a significant difference in the mean alcohol content for beers in the three quality groups? How do you know? Write the results in the following format: F(df value) = ___, p value = ______.
4.The pairwise post hoc tests indicate which quality groups’ means are statistically significantly different for the others. Using the results of the Tukey HSD post hoc test, what two quality rating groups had significantly different mean alcohol by volume levels? How do you know?

Logic Application Project Solution

Logic Application Project

Write in 1 to 3 pages

Logic Application

Refer to the Project DOC file titled: Logic Application Project attached.

Necessary Background

The following project uses the game of Guess Your Card. This is a game in which each player draws (without looking) three cards. Each card has a number between 1 and 9 on it. The players then place their cards on their heads so that everyone but themselves can see the cards.

The object of the game is to guess what cards you have. The first person to do this correctly wins.

During the play, each player, in turn, draws a question at random from a stack of questions. The player then answers the question based on the cards that they see (not their own cards, which they cannot see).

An Example

Andy has the cards 6, 6, & 7

Belle has the cards 3, 6, & 7

Carol has the cards 1, 1, & 9

Dan has the cards 3, 4, & 8

Andy draws the question card, How many 7s do you see He answers, one, because he cannot see the 7 on his own head; he sees only the 7 on Belle’s head.

Next Belle draws the question card, Of the four even numbers, how many different even numbers do you see She answers, Three, because she sees the 4, 6, and 8 on Andy and Dan’s head.

From this, Dan can conclude he has two even cards, since he can only see a 6 and Belle sees two more.

Situation

You are playing Guess Your Card with three other players. Here is what you see:

Andy has the cards 1, 3, & 7

Belle has the cards 3, 4, & 7

Carol has the cards 4, 6, & 8

Andy draws the question card, Do you see two or more players whose cards sum to the same value He answers, `Yes.

Next Belle draws the question card, Of the five odd numbers, how many different

odd numbers do you see She answers All of them. < /font>

Andy suddenly speaks up. “I know what I have,” he says. “I have a one, a three, and a seven.”

The Questions

1. What cards do you have?

In answering this question, you must write a neat and professional report. You need to briefly summarize the salient facts of the problem, explain your strategy for solving the problem, explain why your strategy will work, execute your strategy, show your mathematical working, draw conclusions from your working, and finally present your answer with a brief summery of why it is your conclusion.

2. Remember, your strategy is to use more than logic. What kind of logic will you use?

Logic Application Project

Necessary Background

The following project uses the game of Guess Your Card. This is a game in which each player

draws (without looking) three cards. Each card has a number between 1 and 9 on it. The players

then place their cards on their heads so that everyone but themselves can see the cards.

The object of the game is to guess what cards you have. The first person to do this correctly,

wins.

During the play, each player, in turn, draws a question at random from a stack of questions.

The player then answers the question based on the cards that they see (not their own cards, which

they cannot see).

An Example

Andy has the cards 6 6 7

Belle has the cards 3 6 7

Carol has the cards 1 1 9

Dan has the cards 3 4 8

Andy draws the question card, How many 7s do you see He answers, one, because he

cannot see the 7 on his own head; he sees only the 7 on Belle s head.

Next Belle draws the question card, Of the four even numbers, how many different even numbers

do you see? She answers three, because she sees the 4, 6, and 8 on Andy and Dan s head. From

this, Dan can conclude he has two even cards, since he can only see a 6 and Belle sees two more.

The Project s Situation

You are playing Guess Your Card with three other players. Here is what you see:

Andy has the cards 1 3 7

Belle has the cards 3 4 7

Carol has the cards 4 6 8

Andy draws the question card, Do you see two or more players whose cards sum to the same

value He answers, Yes.

Next Belle draws the question card, Of the five odd numbers, how many different odd numbers

do you see? She answers All of them.

Andy suddenly speaks up. I know what I have, he says. I have a one, a three, and a seven.

The Question

What cards do you have?

In answering this question, you must write a neat and professional report. You need to briefly

summarize the salient facts of the problem, explain your strategy for solving the problem, explain

why your strategy will work, execute your strategy, show your mathematical working, draw conclusions

from your working, and finally present your answer with a brief summery of why it is your

conclusion.

Remember, your strategy is to use more than logic. What kind of logic will you use?

Writing Assignments

Directions

Writing assignments are to be typed solutions. The best way to envision how these papers

are to be constructed is to imagine that you have been hired to answer the questions given in the

assignments. When problem analysts submit their reports to their clients, they do more than simply

answer the question. The document is broken into four parts; in order:

The Problem: This is a statement of the problem that you have been asked to solve. It is

stated in a single, simple sentence. Any necessary and significant details should follow. Think of

this as being the question you have ultimately been hired to answer. Be sure to use your own words.

Remember that your audience is aware of what question they hired you to answer, however, it most

likely has been a fair amount of time and they are busy people. You want to be clear, concise,

include everything important, but don t waste the readers time.

The Approach: What strategy will you use to solve this problem? This is tougher to convey in

a single, simple sentence, and sometimes even a single paragraph. However, you can almost always

begin with a statement saying the method that you used. Follow this with an overview of how you

put the facts together with the technique to get an answer.

This is not a section of mathematical calculations. No calculations are seen here at all. In fact,

this section must be written in future tense, as though you have not already done this work. You

are writing as though you are explaining a proposed method of solving the problem, not from the

standpoint of someone who has already done the work.

Remember, this section is about how you will solve the problem. It cannot seem as though

you have already drawn a conclusion. It should not read like you have already done the work.

Otherwise, you could be accused of bias; if the analyst profits from a particular answer, then they

will choose a method that will lead to this answer. To avoid this perception, you need to maintain

a tone and style of detachment. You do not care which answer you receive for the question, only

what the answer is, whatever it is. To help ensure this tone, you need to include the different

conditions under which you will draw your different possible conclusions. Ultimately, all these

projects involving calculating some value(s) and then choosing a course of action based on this.

Explain what range of values of your possible solution(s) correspond with which courses of action.

Conclusion: Here you start by stating the recommended course of action. You follow this with

a summary of the reasons for your recommendation. This section is the most important section.

You must be sure you are conveying everything needed without boring the reader with extraneous

information. Your reasoning needs to tie back into the explanation you gave in The Approach

regarding how you would choose the course of action.

Solution Details: Only now do you include the mathematics. You must include not just the

calculations, but also a brief explanation of each calculation.

You should also consider the following questions in writing any report.

1. Neatness and professionalism of presentation:

Is your text legible, on white paper with black ink?

Are your pages stapled, without frilly edges, of regular size (81

2 11), and uncrumpled?

Have you used sentences and paragraphs appropriately?

Is your text reasonably free of typos and spelling mistakes?

Does your presentation include an opening statement describing what you intend to

present and a conclusion wrapping up the presentation?

2. Appropriateness and explanation of problem solving strategy: 10 points

If preformed correctly, will your strategy solve the problem?

Is it clear to the reader why your steps will solve the problem?

Are the steps of your strategy in a logical order?

Are there any redundant or unnecessary steps?

3. Implementation of strategy:

Did you follow the strategy you outlined?

Did you preform the steps of your strategy correctly?

4. Use of appropriate mathematical notation and language:

Are you using mathematical language as opposed to common, less precise language?

Are you using mathematical language according to its definition as opposed to a less

precise manner?

Are you using the symbols of mathematics correctly?

5. Presentation of the results presented in the context of the question:

Is the question you are asked, answered?

Is it clear from your presentation (both in the opening and closing) what the question

you are answering is?

Does your answer include a brief summery of why you decided on this answer?

Hi Need answered Asap by tonite

1. Explain which of the three measures of central tendency (mean, median, mode) are appropriate to use for each of the two cases below. Do not work out the problem. Only express your answer and explain why you chose the answer.

a. Prices of laptops: $600, $1300, $2000, $3500

b. Candies:

Hershey’s Bar : 50 cents

M and M’s , Payday , Twix : 50 cents

Reese’s Pieces : 50 cents

Nestle Crunch Bar : 60 cents

2. Search the internet to find two graphs to critique: one you evaluate to be a good graphical representation of the information presented and the other to be a poor graphical representation of the information presented.

Answer the following questions about your selected graphs.

  1. What types of graphs are used to display the information?
  2. Briefly describe the purposes of the graphs.
  3. Do the titles and notes explain the data satisfactorily? Explain why or why not.
  4. What additional information would have been helpful?
  5. What suggestions would you make for a better presentation of this data?
  6. What questions would you ask the researcher about how the data were collected?

LMU is interested in student scholastic performance. The administration will hire a new advisor to…

LMU is interested in student scholastic performance. The administration will hire a new advisor to help students learn more effectively. Those in charge wonder if the advisor should initially help men or women. A study was requested to determine the difference in grade point average between the men and women attending LMU. Our MLS270 class was designated as the sample to determine if a true difference existed. Results will be used to decide who should first receive assistance. Answer the following statements and questions. Use the posted answer form to record your responses to items 1-5.
1. Write the null hypothesis for this study.
2. Write an alternative/research hypothesis for this study.
2. Name the statistical test most appropriate for this study
3. Should a dependent or independent test be used?
4. How many tails should the test statistic involve?
5. What probability should be used to test for significance? Why?

Provide the missing values in the following table. Use the t-test table posted in the Resources tab to determine your answers. Record your responses in the answer form for items 6-10.
#
df
Probability (p)

Tails
Critical Value
6
11
15%

1
7
14
10%

2
8
22
5%

2.074
9
25
1

2.485
10
1%
2
4.082

To ll an order for 150 units of its product, a rm wishes to distribute production between its two…

To ll an order for 150 units of its product, a rm wishes to distribute production
between its two plants, plant 1 and plant 2. The total cost function is given by
c = f(q1; q2) = 0:1q
2
1 + 7q1 + 15q2 + 5000, where q1 and q2 are the numbers of units
produced at plants 1 and 2, respectively. How should the output be distributed in
order to minimize costs?

Hi I really need help with my homework, and I hope you can help. I need to show all the…

Hi I really need help with my homework, and I hope you can help. I need to show all the working to how I solved the problem also. P.s It is due tomorrow.

1. The regular price of a suit is $99. The suit is on sale for 33 1/3% off. Find the sale price.
2. Dara borrowed $3000. She was charged at 15% per year. Find the interest for one year.
3. Joe paid $100 interest on money he borrowed for one year. The rate of the interest was 10%. How much money did her borrow?
4.The cost of a house increased 12% in one year. The original cost was $50,000. Find the cost one year later.
5.The sale price of a pair of shoes is $21. This is 70% of the regular price. Find the regular price.
6.A bicycle is advertised for a sale at 20% discount. The regular price is $150. Find the sale price.

Thank you.

hery answer

Hery answer

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Statistics Final
Name
Institution
Statistics Final
1. Classify the following studies as descriptive or inferential and explain your reasons:
(1 pts.) A study on stress concluded that more than half of all Americans older than 18 have at least “moderate” stress in their lives. The study was based on responses of 34,000 households to the 1985 National Health Interview Survey.
This is an inferential study because it is casting predictions about a large population i.e. all American beyond 18 years from analysis of a sample i.e. 34,000 households. This is typical of inferential studies where one does not have access to the whole population of interest to the study and normally has to base findings on a limited number of data. The study given as an example above has used the results from the analysis of a sample and generalized it to the larger American population.
(1 pts.) A report in a farming magazine indicates that more than 95% of the 400 largest farms in the nation are still considered family operations.
This is a descriptive study. The data was collected from a small population and a good description is offered which makes it easier to interpret the data. In the example given, a statistical measure (95%) has been used to describe the group that was being studied (400 largest farms). The results given do not allow us to arrive at conclusions concerning a larger group.
2. Thirty-five fourth-grade students were asked the traditional question “what do you want to be when you grow up? The responses are summarized in the following table:
Employment
Frequency
Relative Frequency
Teacher
8
0.229
Doctor
6
0.171
Scientist
3
0.086
Police Officer
9
0.257
Athlete
9
0.257
(2 pts.) Construct a pie chart for relative frequency
(2 pts.) Construct a bar graph for the relative frequencies
3. In a college freshman English course, the following 20 grades were recorded
48 88 47 39 45 44 98 76 84 54
67 91 84 38 75 38 …

Attachments:


Henry only

A. B. C. D.
III IV II I (0,0) (15,0) (0,14) (7,0) (0,5) ( ) III IV II I (0,0) (15,0) (0,14) (7,0) (0,5)
A. B. C. D. A. B. C. D.
A. B. C. D. A. B. C. D.

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A. B. C. D.
III IV II I (0,0) (15,0) (0,14) (7,0) (0,5) ( ) III IV II I (0,0) (15,0) (0,14) (7,0) (0,5)
A. B. C. D. A. B. C. D.
A. B. C. D. A. B. C. D.

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here is it

mikel Bayille. i will appreciate if you can finished tonight sir

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Faculty Copy of Quiz # 3
(7.47) In his management information systems textbook, Professor David Kroenke raises an interesting point: “If 98% of our market has Internet access, do we have a responsibility to provide non-Internet materials to that other 2%? Suppose that 98% of the customers in your market do have Internet access, and you select a random sample of 500 customers. What is the probability that the sample has
Greater than 99% of the customers with internet access?
Between 97% and 99% of the customers with Internet access?
Fewer than 97% of the customers with Internet access?
(8.25) One operation of a mill is to cut pieces of steel into parts that are used in the frame for front seats in an automobile. The steel is cut with a diamond saw, and the resulting parts must be cut to be within+/- 0.005 inch of the length specified by the automobile company. The measurement reported from a sample of 100 steel parts (stored in Steel) is the difference, in inches, between the actual length of the steel part, as measured by a laser measurement device, and the specified length of the steel part. For example, the first observation, -0.002 represents a steel part that is 0.002 inch shorter than the specified length.
Construct a 95% confidence interval estimate for the population mean difference between the actual length of the steel part and the specified length of the steel part.
What assumption must you make about the population distribution in order to construct the confidence interval estimate in (a)?
Do you think that the assumption needed in order to construct the confidence interval estimate in (a) is valid? Explain.
(9.31) One operation of a steel mill is to cut pieces of steel into parts that are used in the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts must be cut to be within +/-0.005 inch of the length specified by the automobile company. The file Steel contains a sample of…

Attachments:


Here are the summary statistics for the Olympic long jumps and high jumps displayed inSummer…

Here are the summary statistics for the Olympic long jumps and high jumps displayed in Summer 2004. Event Long Jump Mean 316.04 StdDev 20.85 High jump Mean 83.85 and StdDev 7.46 Correlation= 0.925 (a) Write the linear regression equation for estimating High jump from Long jump. [Hint: s Use y=b0+b1x,where b1 =r___!_ and b0 = y-b1x .] sx (b) Explain the meaning of the slope of the line. (c) In a year when the long jump is 3 50 inches, what high jump would you predict? (d) What does it mean if the residual is positive [Hint: Residual= Data- Model, or, e = y-y.] ,

Here are my Statistics assignment

Please see attachment

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The Project
The infamous company, Jordan & Associates, is in trouble again.  The Deputy Director has just resigned in the midst of rumors going around the departments about discrimination, lawsuits, and even the company picnic has been canceled.
I would like to seek your help in putting together an Ad hoc Statistics Report to be submitted to the CEO so that he can make the appropriate corrective, proactive, and retroactive decisions for the troubled company.
 
The Report Format As you might have known already, my brother, the Jordan & Associates CEO is a very difficult person: his way or the highway.  He is also insistence on proper report format.  Nonetheless, we have to address quite a few issues, which are listed in the later section.  Meanwhile, please follow the standard Jordan & Associates report format as follow:
Make a cover page entitled: Ad-hoc Statistics Report submitted to the CEO.  Then skip a few lines By (Your Name) Skip one or two more line and put the date. This should be the first page, the cover.  Then after the cover page, make a table of contents. Write Table of Contents at the top center. The table of contents should be listed as such:
Title Page ……………………………………………………………………………………………………………………………..i Table of Contents ………………………………………………………………………………………………………………….iii Vacation Histogram ……………………………………………………………………………………………………………….1
Means …………………………………………………………………………………………………………………………………2 Promotion Recommendation ……………………………………………………………………………………………………3
Bonus Recommendation…

let me tyr

Faculty Copy of Quiz # 3
(7.47) In his management information systems textbook, Professor David Kroenke raises an interesting point: “If 98% of our market has Internet access, do we have a responsibility to provide non-Internet materials to that other 2%? Suppose that 98% of the customers in your market do have Internet access, and you select a random sample of 500 customers.

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Faculty Copy of Quiz # 3
(7.47) In his management information systems textbook, Professor David Kroenke raises an interesting point: “If 98% of our market has Internet access, do we have a responsibility to provide non-Internet materials to that other 2%? Suppose that 98% of the customers in your market do have Internet access, and you select a random sample of 500 customers. What is the probability that the sample has
Greater than 99% of the customers with internet access?
Between 97% and 99% of the customers with Internet access?
Fewer than 97% of the customers with Internet access?
(8.25) One operation of a mill is to cut pieces of steel into parts that are used in the frame for front seats in an automobile. The steel is cut with a diamond saw, and the resulting parts must be cut to be within+/- 0.005 inch of the length specified by the automobile company. The measurement reported from a sample of 100 steel parts (stored in Steel) is the difference, in inches, between the actual length of the steel part, as measured by a laser measurement device, and the specified length of the steel part. For example, the first observation, -0.002 represents a steel part that is 0.002 inch shorter than the specified length.
Construct a 95% confidence interval estimate for the population mean difference between the actual length of the steel part and the specified length of the steel part.
What assumption must you make about the population distribution in order to construct the confidence interval estimate in (a)?
Do you think that the assumption needed in order to construct the confidence interval estimate in (a) is valid? Explain.
(9.31) One operation of a steel mill is to cut pieces of steel into parts that are used in the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts must be cut to be within +/-0.005 inch of the length specified by the automobile company. The file Steel contains a sample of…

Attachments:


Linear algebra

I have three example exams that I need completed in order to use as additional sutdy material they must be completed with work shown and or some explanation I do not just want the answer there must be background as to your answers treat it as if it was an actual exam and show your work

here is the link where they are located
http://www.math.uic.e…sepages/math310/exams
and the ones I am in need of help with are the second exam copies
for 2010 2009 and 2008

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The level of various substances in the blood of kidney dialysis patients is of concern because…

The level of various substances in the blood of kidney dialysis patients is of concern because kidney failure and dialysis can lead to nutritional problems. A researcher performed blood tests on several dialysis patients on 6 consecutive clinic visits. One variable measured was the level of phosphate in the blood. Phosphate levels for an individual tend to vary normally over time. The data on one patient, in milligrams of phosphate per deciliter (mg/dl) of blood, are given below.
5.7 4.9 5.6 5.0 7.0 4.3

(b) Use the t procedures to find the margin of error for a 90% confidence interval for this patient’s mean phosphate level.

(c) Use the t procedures to give a 90% confidence interval for this patient’s mean phosphate level.

forcasting recurrence

need to forecast a recurrence:

attached is a graph that we are suppose to use to answer the questions. The questions are also attached to this post. I am soo confused about this exercise!. SO if someone could do this that would be GREAT!!!.

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IST 230 Exercise on Forecasting Recurrences
Use Excel or OpenOffice to forecast the Airline Sales and US Interest Rate data in the data spreadsheet (data.xls or data.ods). You’ll see that I started this for you for the airline data. There’s also a tutorial in the exercise directory which you may find helpful.
Smooth the data using exponential smoothing. If you think the time series does not have a long-term trend up or down, usesimple exponential smoothing. If you think the time series does have a long-term trend up or down, usetrend-adjusted exponential smoothing for each of these time series. Note that this requires that you first do the simple exponential smoothing, and then compute the trend as the smoothed difference between successive forecasts. Finally, compute the trend-adjusted forecast as the sum of these two. Your objective should be to get a fairly smooth (hence the term “smoothing”) curve that follows the trend and runs as closely as possible through the middle of the data. This will usually give an RMS error as small as possible without following the cycles.
Add some type ofcyclicaladjustment. My usual approach is to compute a ratio the actual data and the exponentially smoothed forecast – a so-called “cyclical index” (or if it follows a calendar-year pattern, it’s called a “seasonal index”.) You’ll find additional info in the tutorial.
For both time series (airline-sales and interest-rates), forecast 12 periods ahead (h=12), starting from the beginning of your data, and extrapolate your forecast 12 periods past where you have actual data, based on your latest trend estimate and your cyclical index. Note you won’t be able to assess the forecast for these, since you don’t have actual data.
Use the exponential smoothing formulae given below.
Compute the mean-squared error by summing the squared differences between the forecast values and the actual values.
Your deliverable a one or two page executive summary of your…

Attachments:


FORECASTING

It only needs to be 4 o5 5 pages doubles space and you must have access to the software at RISK to use the one variable at StatTools unless you know how to navigate without it.

please see both files for details

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2005
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2006
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In football, teams can score 6 points with a touchdown, 3 points with a field goal or 2 points…

In football, teams can score 6 points with a touchdown, 3 points with a field goal or 2 points with a safety. Additionally, after a touchdown, teams can score 1 bonus point with a field goal kick or 2 bonus points with a 2-point conversion. The final score of a particular football game was 34 to 21 .

If every touchdown is followed with a successful bonus point attempt (1 or 2 points), how many different scoring combinations could have resulted in the losing team’s 21 points?
If every touchdown is followed with a successful bonus point attempt (1 or 2 points), how many different scoring combinations could have resulted in the winning team’s 34 points?

Five years ago, the average size of farms in a state was 160 acres. From a recent survey of 27…

Five years ago, the average size of farms in a state was 160 acres. From a recent survey of 27 farms, the mean and standard deviation were found to be 180 and 36 acres, respectively.

Is there strong evidence that the average farm size is larger than what it was 5 years ago?

Please, find the p-value of the test

Please, enter p-value as decimal (not percentage), please enter at least 4 digits after the decimal sign

Help Please

MATH133-1302A-01 College Algebra
Assignment Name: Unit 5 Discussion Board
Deliverable Length: 2 3 paragraphs
Details:

The Discussion Board (DB) is part of the core of online learning. Classroom discussion in an online environment requires the active participation of students and the instructor to create robust interaction and dialogue. Every student is expected to create an original response to the open-ended DB question as well as engage in dialogue by responding to posts created by others throughout the week. At the end of each unit, DB participation will be assessed based on both level of engagement and the quality of the contribution to the discussion.

At a minimum, each student will be expected to post an original and thoughtful response to the DB question and contribute to the weekly dialogue by responding to at least two other posts from students. The first contribution must be posted before midnight (Central Time) on Wednesday of each week. Two additional responses are required after Wednesday of each week. Students are highly encouraged to engage on the Discussion Board early and often, as that is the primary way the university tracks class attendance and participation.

The purpose of the Discussion Board is to allow students to learn through sharing ideas and experiences as they relate to course content and the DB question. Because it is not possible to engage in two-way dialogue after a conversation has ended, no posts to the DB will be accepted after the end of each unit.

A grandmother is looking for a plan to finance her new grandchild s college education. She has $62,000 to invest. Search the internet and locate a long-range investment plan, CD, Savings Bond, etc. for the grandmother. The plan is to earn compound interest.

Calculate the future value of the investment. You must use the advertised interest rate, the number of compounding periods per year, and the time the funds will be invested. If you are not given the number of compounding periods a year, make it up.

  1. The principal is $62,000. This is P.
  2. Research the annual interest rate for your investment. This is r.
  3. State the time in years for the investment (as in when the new grandchild will be attending college). This is t.
  4. State the number of compounding periods per year. This is n.
  5. Model the future value of Grandma s investment as an exponential function, with time as the independent variable: F(t) = P(1 + r/n) nt
  6. State the future value of Grandma s investment.
  7. Use the internet or library resources to find the average cost of a college education today; will grandma s investment be able to cover the cost in today s dollars; what about in the future?
  8. Summarize your findings in writing using proper style and grammar.

Include references formatted according to APA style.

Respond to a classmate s posting. If you think there may be an error, feel free to help your classmate without providing the correct answer. Otherwise, analyze the post in comparison to yours or add new information to the discussion.

In your own words, please post a response to the Discussion Board and comment on other postings. You will be graded on the quality of your postings.

For assistance with your assignment, please use your text, Web resources, and all course materials.

Course Materials

Points Possible: 50
Date Due: Sunday, Jun 02, 2013
Objective:
  • Solve equations, such as linear, quadratic, radical, rational, exponential and logarithmic.
  • Graph functions such as linear, quadratic, radical, rational, exponential and logarithmic.
Submitted Files: Discussion Board
Score: N/A
Instructor Comments: No comments have been made

help with everthing

Construct a confidence interval at the given level for the population mean based on the sample mean. Each question is worth 10 points. Make sure to answer the question at the end of each item.
Use the formula: sample mean margin of error Margin of error = zc
1. A manager of a baseball stadium wished to construct a 90% confidence interval for the average age of all baseball fans. In a random sample of 40 fans, the mean age was 32.5 years with a standard deviation of 2.3 years. Construct the interval. Why would the manager find this information useful?

2. A random sample of 42 computers has an average price of $875 with a standard deviation of $54. The principal of a high school wants to construct a 95% confidence interval for the average price. Construct the interval for her. Why would the principal find this information useful?

3. The school nurse surveys 30 girls and finds the average weight of these girls to be 134 pounds with a standard deviation of 12 pounds. Construct a 99% confidence interval for the nurse and tell how she might use this information.

4. A random sample of 36 cats found the average weight to be 9.8 pounds with a standard deviation of 2.4 pounds.
a. Construct a 90% confidence interval for the average weight of the cats.

b. Construct a 95% confidence interval for the average weight of the cats.

c. How and why did the intervals change?

5. A consumer is considering purchasing a set of tires. She samples 30 companies and finds the average price of a set of tires is $245 with a standard deviation of $38. Construct a 95% confidence interval for the average price of the tires. How would this information help her in purchasing the tires?

If she samples 50 companies, how and why does the interval change?

Help with Statistics

I need help with 5 statistics questions that need to be solved. This assisgnment is due anytime on Saturday, December 14 at anytime possible.

Please see attachment for more details.

Thank you!

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QSO 510 Final Exam

Answer All Five Questions (Amaria)

“Notes: This exam is an open book exam with no time limit. All work should be done individually. Word-process your solutions within this template and show all steps used in arriving at the final answers. Incomplete solutions will receive partial credit. Copy and paste all necessary data from Excel into this document and create tables as needed.”

Problem 1
The average prices for a product in twelve stores in a city are shown below.
$1.99, $1.85, $1.25, $2.55, $2.00, $1.99, $1.76, $2.50, $2.20, $1.85, $2.75, $2.85
Test the hypothesis that the average price is higher than $1.87. Use level of significance ( = 0.05..

Problem 2
A store wants to predict net profit as a function of sales for next year. Historical data for 8 years is given in the table below.
Year Sales Net Profit 1 59 5.0 2 50 8.4 3 51 9.5 4 65 8.6 5 80 1.5 6 85 -2.1 7 95 1.2 8 90 1.8 Make a scatter diagram for the data, using Sales for the independent variable and Net Profit for the dependent variable. Insert the trend line and add the equation and R2 value to the diagram.
Determine the correlation coefficient. Comment on the value of the correlation coefficient.”
Find the predicted value of Y given X = 75. Give an interpretation of the predicted value in the context of the problem.
Construct an ANOVA table and attach the summary output.

Problem 3
The following table shows six years of average annual food price index (May to April data):
Year Annual Food Price Index 2005 101.8 2006 114.8 2007 143.3 2008 144.3 2009 138.1 2010 165.1
Forecast the average annual food price index for all years from 2008 to 2011. Use a three-year weighted moving average with weights of 0.5, 0.3, and 0.2. Use the largest weight with the most recent data.
Forecast the average annual food price index using exponential smoothing with a = 0.7 for all years from 2006 to 2011. Use the rate for 2005 as the starting forecast…

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Help with statistics!!!

Scenario

30 bags of a certain candy were opened. The candy comes in 2 different colors: red and blue. The number of each color of candy per bag was counted and recorded.

Bag

Red

Blue

1

3

5

2

7

3

3

1

1

4

2

7

5

0

5

6

0

2

7

4

3

8

3

2

9

1

4

10

5

4

11

2

2

12

2

2

13

2

3

14

3

1

15

2

2

16

3

5

17

5

1

18

4

4

19

3

0

20

3

3

21

5

0

22

3

3

23

1

2

24

4

4

25

2

2

26

1

2

27

3

5

28

4

1

29

3

4

30

5

1

Requirements

Using the information from the scenario and the results from your previous assignments, write a pair of hypothesis for each of the claims and perform the hypothesis test. Be sure to list , critical values, standardized test statistics, P-values, and decision. Interpret the results.

  1. With 90% confidence, the average number of red candies is 3.
  2. With 99% confidence, the average number of blue candies is less than 2.5.

Please be sure to show your work.

Help my math essay

COVER page will include project NAME, your NAME, COURSE NAME& NUMBER, due DATE and is to be word processed.

PAGE 1 is to be word processed, and include:

1. Project name and description of project.

2. Proposed budget, including transportation and delivery costs, labor costs to purchase materials and complete the project.

3. Scheduled start and finish date, including person hours to complete the project.

4. Material description, such as type of wood or shingles or fabric, thickness of concrete or floor covering.

5. A draft/outline is to be sent to me via MCC e-mail for my review/comment. You will receive a separate e-mail from me stating due dates.

PAGE 2 is a table using word processing or spreadsheet software and include project component data:

1. Columns for proposed QUANTITY, unit PRICE estimate, TOTAL individual component cost.

2. Rows for each component NAME, including transportation & delivery components.

3. Last row/column will include grand TOTAL estimated cost of project.

4. Following the table will be a statement explaining the % over or under the estimated cost vs the actual cost.

PAGE 3 is a DRAWING or other facsimile of the project, which will include DIMENSIONS on a sketch or photo or media picture.

Help on calculus homework please

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1-Consider the following.
(a) Use six rectangles to find estimates of each type for the area under the given graph of f from x = 0 to x = 24.
(i) Sample points are left endpoints.
L6 =
(ii) Sample points are right endpoints.
R6 =
(iii) Sample points are midpoints.
M6 =
(b) Is L6 an underestimate or overestimate of the true area?
overestimate
underestimate 
(c) Is R6 an underestimate or overestimate of the true area?
overestimate
underestimate 
(d) Which of the numbers gives the best estimate?
R6
M6 
L6
2-Do the following.
Estimate the area under the graph of f(x) = 2 cos(x) from x = 0 to x = p/2. (Round the answer to four decimal places.)
(a)  Use four approximating rectangles and right endpoints.
R4 =
Is your estimate an underestimate or an overestimate?
underestimate
overestimate 
(b)  Use four approximating rectangles and left endpoints.
L4 =
Is your estimate an underestimate or an overestimate?
underestimate
overestimate 
3-Speedometer readings for a motorcycle at 12-second intervals are given in the table.
t (s)
0
12
24
36
48
60
v (ft/s)
32
27
25
22
24
27
(a) Estimate the distance traveled by the motorcycle during this time period using the velocities at the beginning of the time intervals.
ft
(b) Give another estimate using the velocities at the end of the time periods.
ft
(c) Are your estimates in parts (a) and (b) upper and lower estimates? Explain.
(a) is a lower estimate and (b) is an upper estimate since v is an increasing function of t.
(b) is a lower estimate and (a) is an upper estimate since v is a decreasing function of t.
(a) and (b) are neither lower nor upper estimates since v is neither an increasing nor decreasing function of t.
4-Oil leaked from a tank at a rate of r(t) liters per hour. The rate decreased as time passed, and values of the rate at two hour time intervals are shown in the table. Find lower and upper estimates for the total amount of oil that leaked out.
V
˜
L (lower…

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Help with Paper for Stats

I have a paper that is due tomorrow for Stats, but I am not sure how to incorporate some of the formulas for a Type I and II error, P-value, signifance level, etc. I will post the paper, and if someone can let me know if they can help, I would appreciate it. Below are the items I need to incorporate into the paper:

  • The precise goal of the study or experiment
  • The population
  • Your expected sample size
  • How you will go about collecting your sample
  • Exactly what statistical computations you expect to perform (hypothesis, null hypothesis, hypothesis, alternative hypothesis, type I and II error, significance level, critical value, P-value, etc.)
  • How you will present your results to the reader
  • Itemized expected cost for your study in terms of time and money
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The precise goal of the study or experiment
The population
Your expected sample size
How you will go about collecting your sample
Exactly what statistical computations you expect to perform (hypothesis, null hypothesis, alternative hypothesis, type I and II error, significance level, critical value, P-value, etc.
How you will present your results to the reader
Itemized expected cost for your study in terms of time and money
Childhood Obesity among Pittsburgh School Students, Ages 6-12 Years
The hypothesis of if schools served healthier food and gave the children more time to eat as well as having more chances to be active, like recess and physical education, then child hood obesity rates would decrease drastically. This study will investigate effects of teaching obese children better habits of eating and exercise and improved habits and self-esteem. The children for the study will be drawn from the general school population (ages 6 to 12). Students (n = 20) will receive a brief intervention regarding nutrition, activity, and snacking. Students will serve as their own control. Each participant will be pre- and post-tested regarding eating behavior, activity, snacking behavior, and levels of self-esteem. The hypothesis will be tested through the application of quantitative analysis (one-way ANOVA) to the data collected
(Dotsch, Kokocinski, Knerr, Rascher, Rascher & Weigel, 2008).
The goal of this proposal is to study the prevalence of obesity among school children 6-12 years old in Pittsburgh Public Schools, and to identify any variation as per age, gender, place of residence, and type of school. Obesity is usually defined as more than 20 percent above ideal weight for a particular height and age (“Obesity,”). This proposal is addressed to meet the needs of children who have become obese due to environmental factors. If we can alter a few key and relatively simple areas in the lives of individuals, reinforce this within the schools and community,…

Help me with calc!

Just some calc homework I need help with.

Please show your work as best you can.

Thanks alot! Chat me if interested!

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1. on [-5, 3]
a) Determine the critical points of f(x).
b) Determine where the function f(x) is increasing and / or decreasing.
c) Determine all relative (local) minimums and / or maximums points of f(x).
d) Determine where the function f (x) is concave up / concave down.

e) Determine all inflection points of f(x).
f) Determine the absolute (global) minimum and maximum points of f(x).
g) Sketch the general shape of the graph for f.
2. A campground owner has 1400 m of fencing. He wants to enclose a rectangular field bordering a river, with
no fencing needed along the river. Determine the dimensions that would enclose the maximum area.
3. Sketch a graph of g(x) with the following characteristics:
Continuous for all real numbers
for and (1, 3)
for (-6, 1) and
for (-6, 3)
for and
f(0) = 2

4. Determine the linear approximation to f (x) = 4×3 -2x + 1 at x = 4 and use it to approximate f(4.3).
Compare this to the actual f(4.3)
5. Use a linear approximation to estimate . Compare to the exact answer.
6. Solve the initial value problem. (1, 7)
7. Determine y if y’(2) = 6, andy(3) = -4.

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help me pleases

Question 1

  1. The following set of scores was recorded for the results of a statistics exam:
    45, 48, 68, 77, 42, 74, 67, 56, 62, 79, 88, 45, 64, 51, 97, 55, 42, 54, 55
    Which of the histograms below best represents the data?

    Answer

1 points

Question 2

  1. Identify the correct statement about the following histogram that shows the scores for a statistics exam:

    Answer

    Approximately 19% of the students scored in the 81 – 90 score interval.
    Approximately 5% of the students scored in the 81 – 90 score interval.
    Approximately 7% of the students scored in the 81 – 90 score interval.
    Approximately 24% of the students scored in the 81 – 90 score interval.

1 points

Question 3

  1. Characterize the distribution of the scores in the following histogram:

    Answer

    Normal distribution
    Negatively skewed
    Positively skewed

1 points

Question 4

  1. Use the histogram below to determine the interval in which the median can be found:

    Answer

    51 – 60
    61 – 70
    71 – 80
    81 – 90

1 points

Question 5

  1. Calculate the range of the following set of data: 9, 81, 89, 54, 76, 23, 29, 45, 87, 48, 18, 12, 39

    Answer

    13
    80
    30
    40

1 points

Question 6

  1. Calculate the median of the following set of data: 34, 57, 17, 39, 20, 40, 11, 3, 12, 30

    Answer

    26.3
    25
    54
    30

1 points

Question 7

  1. Identify the maximum value displayed in the plot below:

    Answer

    105
    92.5
    80
    70

1 points

Question 8

  1. Determine the first quartile of the data displayed on the box plot:

    Answer

    47.5
    55
    40
    66

1 points

Question 9

  1. Determine the interquartile range of the data displayed in the following box plot:

    Answer

    12.5
    62.5
    82.5
    21.5

1 points

Question 10

  1. Choose the correct statement below about outliers of the data displayed on the following box plot:

    Answer

    There is at least one outlier toward the maximum/right-most end of the data.
    There is at least one outlier toward the minimum/left-most end of the data.
    There are no outliers.

help math

In a recent survey of 100 women, the following information was gathered.
42 use shampoo A. 54 use shampoo B. 30 use shampoo C. 12 use shampoos A and B. 20 use shampoos A and C. 5 use shampoos B and C. 4 use all three.
Use the figure to answer the question in the problem.
How many are using shampoo A only (Region I)? women
Viewing Saved Work Revert to Last Response
4.–/0.36 pointsSmithMath1 8.5.015.alt.CMI.My Notes |
Question Part
Points
1
–/0.36
Total
–/0.36
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below.

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In a recent survey of 100 women, the following information was gathered.
42 use shampoo A. 54 use shampoo B. 30 use shampoo C. 12 use shampoos A and B. 20 use shampoos A and C. 5 use shampoos B and C. 4 use all three.
Use the figure to answer the question in the problem.
How many are using shampoo A only (Region I)? women
Viewing Saved Work Revert to Last Response
4.–/0.36 pointsSmithMath1 8.5.015.alt.CMI.My Notes |
Question Part
Points
1
–/0.36
Total
–/0.36
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three?
33 said they drove alone. 31 rode in a carpool. 31 rode public transportation. 5 used both carpools and public transportation. 8 used both a carpool and sometimes their own cars. 6 used buses as well as their own cars. 4 used all three methods.
students
Viewing Saved Work Revert to Last Response
5.–/2.88 pointsSmithMath1 8.5.005.CMI.My Notes |
Question Part
Points
1
2
3
4
5
6
7
8
–/0.36
–/0.36
–/0.36
–/0.36
–/0.36
–/0.36
–/0.36
–/0.36
Total
–/2.88
Give the numbers of elements in the regions marked I, II, III, IV, V, VI, VII, VIII in the figure.
|U| = 230, |A| = 30, |B| = 12, |C| = 20 |AnB| = 2, |AnC| = 3, |BnC| = 3, |AnBnC| = 1
| I |
=
| II |
=
| III |
=
| IV |
=
| V |
=
| VI |
=
| VII |
=
| VIII |
=
Viewing Saved Work Revert to Last Response

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Help with 3 problems

help with math problems for calc 2

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Math 150B Quiz #11 Fall 2013
Show your work! Be thorough in all explanations!
1. Find the Maclaurin Series for using the definition of Maclaurin Series.
2. Find the Taylor series for centered at .
3. Sketch the curve of the parametric equations and with by plotting points. Indicate with an arrow the direction in which the curve is traced as t
increases. Then eliminate the parameter to find a Cartesian equation of the curve.
Name ____________________________________
Class Time _______________________________

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help with exercise2

1.  A set of 200 scores is normally distributed with a mean of 60 and a standard deviation of 12.
a)  What are the z-scores corresponding to the raw scores of 76, 38, and 50?
 
2.  The norms for a standardized mathematics test are as follows:
National norms    Mean = 75       s = 12
Large-city norms  Mean = 68 s = 15
 John has a score of 80 and Mary has a score of 65.  What are their percentile ranks in terms of the national norms?  and in terms of the large-city norms?
 
 
3.  The results of a Statistics exam show a mean of 55 with a standard deviation of 6.

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1.  A set of 200 scores is normally distributed with a mean of 60 and a standard deviation of 12.
a)  What are the z-scores corresponding to the raw scores of 76, 38, and 50?
 
2.  The norms for a standardized mathematics test are as follows:
National norms    Mean = 75       s = 12
Large-city norms  Mean = 68 s = 15
 John has a score of 80 and Mary has a score of 65.  What are their percentile ranks in terms of the national norms?  and in terms of the large-city norms?
 
 
3.  The results of a Statistics exam show a mean of 55 with a standard deviation of 6.  What percentage of students fall below a scores of 46?  Above a score 68?

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Help – I need a spreadsheet with statistics!

University is concerned that out of stateemployees may be receiving lower wages than local workers.Twoindependentrandom samples have been selected: 165 observations frompopulation 1(Out of stateworkers) and177 frompopulation 2 (local). The samplemeans obtainedareX1(bar)=86 and X2(bar)=87.It is known fromprevious studies that the population variances are8.1and 7.3 respectively. Using a level of significanceof.01, isthere evidence that theoutof state workersmay bereceivinglower wages?Fullyexplain your answer.

I need this as a spreadsheet!

Help

B.The I-75 Carpet Discount Store has an annual demand of 10,000 yards

of Super Shag carpet. The annual carrying cost for a yard of this

carpet is $0.75, and the ordering cost is $150. The carpet manufacturer normally charges the store $8 per yard for the carpet; however,the manufacturer has offered

a discount price of $6.50 per yard if the store will order 5,000 yards. How much should the store order, and what will be the total annual inventory cost for that order quantity?

help with exercise

1.  A sample of 45 truck drivers was given the Army General Classification Test.  The sample mean is 96.2 with a sample standard deviation of 9.7.  Construct a 95% confidence interval for the population mean score of all truck drivers.
 
2.  The Central Ohio Paper Company wants to estimate the mean time required for a new machine to produce a ream of paper, wrap it, and put it in a box ready for shipment.  A random sample of 36 reams required a mean machine tme of 1.5 minutes.  Assuming a standard deviation of 0.3 minutes, construct an interval estimate with a confdience level of 95%.

Document Preview:

1.  A sample of 45 truck drivers was given the Army General Classification Test.  The sample mean is 96.2 with a sample standard deviation of 9.7.  Construct a 95% confidence interval for the population mean score of all truck drivers.
 
2.  The Central Ohio Paper Company wants to estimate the mean time required for a new machine to produce a ream of paper, wrap it, and put it in a box ready for shipment.  A random sample of 36 reams required a mean machine tme of 1.5 minutes.  Assuming a standard deviation of 0.3 minutes, construct an interval estimate with a confdience level of 95%.break
 
3.  A sample of 400 fuses had a mean breaking point (in amperes of current) of 7.5, with a sample standard deviation of 1.0.  Construct a 95% confidence interval for the population mean breaking point.
 
4.  A sample of 100 high school students revealed that the mean time spent working at an outisde job each week is 10.7 hours, with a standard deviation of 11.6 hours.  What is the 99% confidence level fo rthe mean number of hours that the population of high school students spent working each week?
 

of hours that the population of high school students spent working each week?
 

he sample mean is 96.2 with a sample standard deviation of 9.7.  Construct a 95% confidence interval for the population mean score of all truck drivers.
 
2.  The Central Ohio Paper Company wants to estimate the mean time required for a new machine to produce a ream of paper, wrap it, and put it in a box ready for shipment.  A random sample of 36 reams required a mean machine tme of 1.5 minutes.  Assuming a standard deviation of 0.3 minutes, construct an interval estimate with a confdience level of 95%.break
 
3.  A sample of 400 fuses had a mean breaking point (in amperes of current) of 7.5, with a sample standard deviation of 1.0.  Construct a 95% confidence interval for the population mean breaking point.
 
4.  A sample of 100 high school students revealed that the mean time spent…

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help

MATH133-1302A-01 College Algebra
Assignment Name: Unit 4 Discussion Board
Deliverable Length:
Details:

The Discussion Board (DB) is part of the core of online learning. Classroom discussion in an online environment requires the active participation of students and the instructor to create robust interaction and dialogue. Every student is expected to create an original response to the open-ended DB question as well as engage in dialogue by responding to posts created by others throughout the week. At the end of each unit, DB participation will be assessed based on both level of engagement and the quality of the contribution to the discussion.

At a minimum, each student will be expected to post an original and thoughtful response to the DB question and contribute to the weekly dialogue by responding to at least two other posts from students. The first contribution must be posted before midnight (Central Time) on Wednesday of each week. Two additional responses are required after Wednesday of each week. Students are highly encouraged to engage on the Discussion Board early and often, as that is the primary way the university tracks class attendance and participation.

The purpose of the Discussion Board is to allow students to learn through sharing ideas and experiences as they relate to course content and the DB question. Because it is not possible to engage in two-way dialogue after a conversation has ended, no posts to the DB will be accepted after the end of each unit.

Two companies start up at the same time. Company A claims their annual profits follow a linear model, P(x)=10x-7 where x is the number of units sold and x 1 . Company B claims that their annual profits follow a radical model, P(x)=15 (x – 1)+3, where x is the number of units sold and x 1. It is your job to investigate the validity of each claim.

1. Choose five values for x to plug into the linear function, P(x)=10x-7 and create a table of values.

2. Use the same five x values to plug into the radical function, P(x)=15 (x – 1)+3 and create a table of values.

3. Using the table of values from parts 1 and 2 graph both functions. Upload the graph as an attachment to your post, or paste it directly into the DB using the paste as html feature or picture feature of the toolbar.

4. Using the graphs from part 3 compare the profits of each company and evaluate their claims. Which model seems more realistic, the linear or radical model, and why?

In your own words, please post a response to the Discussion Board and comment on other postings. You will be graded on the quality of your postings.

For assistance with your assignment, please use your text, Web resources, and all course materials.

Course Materials

Points Possible: 50
Date Due: Sunday, May 26, 2013
Objective:
  • Solve equations, such as linear, quadratic, radical, rational, exponential and logarithmic.
  • Graph functions such as linear, quadratic, radical, rational, exponential and logarithmic.
Submitted Files: Discussion Board
Score: N/A

I am having problem with this question. A magazine survey found that women over the age of 55…

I am having problem with this question.

A magazine survey found that women over the age of 55 consume anaverage of 1660 calories a day. In order to see if the same wastrue for women over 55 in assisted living facilities, a researchersampled 43 women. She found that the mean for the sample was 1446and that the sample standard deviation was 56 calories. At =.10 test the claim that the average number of caloriesconsumed by the women is assisted living is the same as the numbercalories consumed by the women magazine survey.

I used the z test formula but when i got the my Z it was somethingbig like 25 and it seemed way off to me. consume please help me

How much do wild mountain lions weigh? Suppose that in a certain region adult wild mountain lions…

How much do wild mountain lions weigh? Suppose that in a certain region adult wild mountain lions (18 months or older) captured and released for the first time gave the following weights (pounds):
60 100 125 126 63 64
For these sample data, the mean is 89.7 pounds and the sample standard deviation is s 31.4 pounds. Find an 80% confidence interval for the population average weight of all adult mountain lions in the specified region. Round your answer to two decimal places.
a. 70.8 pounds to 101.1 pounds
b. 67.6 pounds to 101.1 pounds
c. 56.9 pounds to 101.1 pounds
d. 70.8 pounds to 108.6 pounds
e. 67.6 pounds to 108.6 pounds
Question 2
True or False? As the degrees of freedom increase, the Student’s t distribution becomes more like the standard normal distribution.
True
False .
Question 3
The price of a share of stock divided by the company’s estimated future earnings per share is called the P/E ratio. High P/E ratios usually indicate “growth” stocks, or maybe stocks that are simply overpriced. Low P/E ratios indicate “value” stocks or bargain stocks. A random sample of 10 of the largest companies in a country gave the following P/E ratios.
14 36 17 13 58 62 70 42 55 77
For these sample data, the mean is 44.4 and the sample standard deviation iss 23.7. Find a 95% confidence interval for the P/E population mean of all large companies of that country. Round your answer to one decimal place.
a. 27.4 to 53.6
b. 27.5 to 53.6
c. 19.8 to 53.6
d. 27.4 to 61.4
e. 27.5 to 61.4
Question 4
Suppose thirty communities gave an average of = 142.6 reported cases of larceny per year. Assume that is known to be 45.8 cases per year. Find a 75%, 85%, and 90% confidence interval for the population mean annual number of reported larceny cases in such communities. Compare the lengths of the confidence intervals. As the confidence levels increase, do the confidence intervals increase in length?
a. The 75% confidence level has a confidence interval length of 105.3; the 85% confidence level has a confidence interval length of 131.9; and the 90% confidence level has a confidence interval length of 150.7. As the confidence level increases, the confidence interval length increases.
b. The 75% confidence level has a confidence interval length of 150.7; the 85% confidence level has a confidence interval length of 131.9; and the 90% confidence level has a confidence interval length of 105.3. As the confidence level increases, the confidence interval lengths decreases.
c. The 75% confidence level has a confidence interval length of 5.0; the 85% confidence level has a confidence interval length of 4.4; and the 90% confidence level has a confidence interval length of 3.5. As the confidence level increases, the confidence interval length decreases.
d. The 75% confidence level has a confidence interval length of 3.5; the 85% confidence level has a confidence interval length of 4.4; and the 90% confidence level has a confidence interval length of 5.0. As the confidence level increases, the confidence interval lengths increases.
e. The 75% confidence level has a confidence interval length of 19.2; the 85% confidence level has a confidence interval length of 24.1; and the 90% confidence level has a confidence interval length of 27.5. As the confidence level increases, the confidence interval lengths increases.
Question 5
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 54 farming regions gave a sample mean of = $6.3 per 100 pounds of watermelon. Assume that is known to be $1.98 per 100 pounds. Find the margin of error for 99% confidence level for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crop. Round your answer to the nearest cent.
Answer a. $13.47 per 100 pounds
b. $0.09 per 100 pounds
c. $0.19 per 100 pounds
d. $0.70 per 100 pounds
e. $0.27 per 100 pounds
Question 6
True or false? The point estimate for the population mean of an x distribution is , computed from a random sample of the x distribution.
True
False
Question 7
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of some male firefighters are tested and that they have a plasma volume sample mean of = 36.5 ml/kg (milliliters of plasma per kilogram body weight). Assume that = 7.60 ml/kg for the distribution of blood plasma. Find the smallest sample size necessary for a 98% confidence level with maximal error estimate E = 3.1.
a. 6
b. 29
c. 3
d. 37
e. 33
Question 8
Answer the question Yes or No. Sam computed a 90% confidence interval for from a specific random sample of size n. He claims that at the 90% confident level, his confidence interval does not contain . Is this claim correct?
a. Yes
b. No
Question 9
Consider a 95% confidence interval for . Assume is not known. For which sample size, n = 18 or n = 24, is the confidence interval longer?
a. 24
b. 18
Question 10
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 61 male firefighters are tested and that they have a plasma volume sample mean of = 39.5 ml/kg (milliliters of plasma per kilogram body weight). Assume that = 7.50 ml/kg for the distribution of blood plasma. Find the margin of error for 98% confidence level of the population mean blood plasma volume in male firefighters. Round your answer to two decimal places.
Answer a. 0.29 ml/kg
b. 2.24 ml/kg
c. 51.90 ml/kg
d. 0.34 ml/kg
e. 0.94 ml/kg
Question 11
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 50 male firefighters are tested and that they have a plasma volume sample mean of = 38.5 ml/kg (milliliters of plasma per kilogram body weight). Assume that = 7.70 ml/kg for the distribution of blood plasma. Find the 95% confidence interval of the population mean blood plasma volume in male firefighters. Round your answer to two decimal places.
a. 37.47 ml/kg to 39.53 ml/kg
b. 36.87 ml/kg to 35.87 ml/kg
c. 36.37 ml/kg to 40.63 ml/kg
d. 38.13 ml/kg to 38.87 ml/kg
e. 38.20 ml/kg to 38.80 ml/kg
Question 12
Suppose a certain species bird has an average weight of = 3.40 grams. Based on previous studies, we can assume that the weights of these birds have a normal distribution with = 0.29 grams. Find the sample size necessary for an 98% confidence level with a maximal error of estimate E = 0.09 for the mean weights of the hummingbirds.
a. 21
b. 155
c. 8
d. 424
e. 57
Question 13
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 51 farming regions gave a sample mean of = $7.08 per 100 pounds of watermelon. Assume that is known to be $1.80 per 100 pounds. Find a 99% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crop. Round your answer to the nearest cent.
a. $6.93 to $5.93 per 100 pounds
b. $6.43 to $7.73 per 100 pounds
c. $6.89 to $7.27 per 100 pounds
d. $6.83 to $7.33 per 100 pounds
e. $6.99 to $7.17 per 100 pounds
Question 14
A random sample of 5830 physicians in Colorado showed that 3175 provided at least some charity care. Let p represent the proportion of all Colorado physicians who provide some charity care. Find a 98% confidence interval for p. Give a brief interpretation of the meaning of the confidence interval you have found. Round your answer to two decimal places.
a. We are 2% confident that the interval from 0.53 to 0.56 is an interval that contains p, the proportion of all Colorado physicians who provide some charity care.
b. We are 98% confident that the interval from 0.02 to 0.53 is an interval that contains p, the proportion of all Colorado physicians who provide some charity care.
c. We are 98% confident that the interval from 0.02 to 0.56 is an interval that contains p, the proportion of all Colorado physicians who provide some charity care.
d. We are 2% confident that the interval from 0.02 to 0.56 is an interval that contains p, the proportion of all Colorado physicians who provide some charity care.
e. We are 98% confident that the interval from 0.53 to 0.56 is an interval that contains p, the proportion of all Colorado physicians who provide some charity care.
Question 15
In a random sample of 508 judges, it was found that 281 were introverts. Let p represent the proportion of all judges who are introverts. Find a point estimate for p. Round your answer to four decimal places.
a. p=0.6762
b. p=0.5531
c. p= 1.0000
d. p= 0.0000
e. p= 0.4469
Question 16
Suppose that out of 15,351 convicts who escaped from U.S. prisons, only 7667 were recaptured. Let p represent the proportion of all escaped convicts who will eventually be recaptured. Find a point estimate for p. Round your answer to four decimal places
a. p= 0.000
b. p= 0.4994
c. p=0.6225
d. p= 0.5006
e. p= 1.0000
Question 17
Suppose that out of 13,351 convicts who escaped from U.S. prisons, only 7367 were recaptured. Let p represent the proportion of all escaped convicts who will eventually be recaptured. Find a 99% confidence interval for p, if a point estimate for p is 0.55. Give a brief interpretation of the meaning of the confidence interval you have found. Round your answer to two decimal places.
a. We are 99% confident that the interval from 0.01 to 0.54 is an interval that contains p, the proportion of all escaped convicts who will eventually be recaptured.
b. We are 99% confident that the interval from 0.01 to 0.56 is an interval that contains p, the proportion of all escaped convicts who will eventually be recaptured.
c. We are 99% confident that the interval from 0.54 to 0.56 is an interval that contains p, the proportion of all escaped convicts who will eventually be recaptured.
d. We are 1% confident that the interval from 0.01 to 0.56 is an interval that contains p, the proportion of all escaped convicts who will eventually be recaptured.
e. We are 1% confident that the interval from 0.54 to 0.56 is an interval that contains p, the proportion of all escaped convicts who will eventually be recaptured.
Question 18
In a random sample of 67 professional actors, it was found that 50 were extroverts. Let p represent the proportion of all actors who are extroverts. Find a point estimate for p.
a. 0.373
b. 0.746
c. 0.627
d. 17
e. 50
Question 19
Suppose you want to conduct a survey to determine the proportion of people who favor a proposed tax policy. How does decreasing the sample size affect the size of the margin of error?
a. Decreasing the sample size decreases the size of the margin of error.
b. Decreasing the sample size increases the size of the margin of error.
Question 20
In a random sample of 61 professional actors, it was found that 53 were extroverts. Find a 95% confidence interval for p.
a. 0.782 to 1.433
b. 0.797 to 0.955
c. 0.797 to 0.941
d. 0.782 to 0.941
e. 0.782 to 0.955

I am completely lost with this question. I have a lot more homework like this to do some if…

I am completely lost with this question. I have a lot more homework like this to do some if someone could do each one and explain a little so i can do the rest of them, that would be awesome!!!
Thanks!

Ms. Fitness-Buff, a high school gym teacher, wants to propose an after-school fitness program. To get an idea of the fitness level of the students at her school, she takes a random sample of 75 students and records the number of hours the students exercised in the past week. Her sample mean is 2.25 hours and she knows from past research that the population standard deviation is 2 hours. She wants to know if this varies from a population mean of 3 hours/week.

A. Construct a 95% confidence interval.

B. Draw a conclusion for a two-sided test at a = .05.

C. Ms. Fitness-Buff is told that if students exercise less than 3 hours per week, she can start an after-school fitness program. Test this one-sided hypothesis and draw a conclusion at a = .05.

D. What would the consequences of a Type I error be in the test from part C?

E. What’s the probability of a Type I error for the test in part C?

F. What would the consequences of a Type II error be for the test from part C?

G. What is the rejection region for Ho: mue = 3 for the test from part C?

H. Calculate the probability of making a Type II error if the true population mean is 2.75.

I. What’s the power of the test if the true population mean is 2.75?

Hypothesis

During week 1 (ch.8) of the text, we read about the power of a test. Remember that the power of a test can be summarized as the probability of rejecting a false null hypothesis. In other words, the power of a test is how likely we are to get it right. This provides the foundation for a potentially interesting discussion. By now, each of you has identified the assumption differences between parametric and nonparametric tests, but we have yet to discuss the differences in terms of power. Let s use this thread to do so.

Let s assume that you wish to test a hypothesis and are able to use a t-test (parametric test) for the analysis. Could you also use a nonparametric test for this? Why or why not? Assuming an identical level of significance for each test, which would be more powerful and why?

How do you factor the difference of two squares

  1. How do you factor the difference of two squares?
  2. How do you factor the perfect square trinomial?
  3. How do you factor the sum and difference of two cubes?
  4. Which of these three makes the most sense to you? Explain why.
  5. What one area from the readings in Week Three are you most comfortable with? Why do you think that is? Using what you know about this area, create a discussion question that would trigger a discussion that is, so there is no single correct answer to the question.

How can I graph this in excel

  • Roll a die 20 times, and record the results of each event in Excel.te: http://www.random.org/dice
  • Construct a bar graph and probability distribution of your experiment. Attach your results to your Discussion Board posting.
  • Interpret the results of this experiment, answering the following questions:
    • What are the random variables for your experiment? Explain the meaning of your random variables.
    • Do you believe that the results of your experiment are discrete or continuous? Explain.
    • Is your experiment a probability distribution? In other words, are all conditions of a probability distribution satisfied? Explain.
    • Is your experiment a binomial probability distribution? Explain if all conditions are met or not.

If and object is thrown upward, dropped, or thrown downward and travels in a straight line subject…

If and object is thrown upward, dropped, or thrown downward and travels in a straight line subject only to gravity, the height h of the object above the ground (in feet) after t seconds is given by h=-16t^2+vt+h, where h is the height of the object when t=0 and v is the velocity of the object at time t=0. Note that the value of v is taken to be positive if the object moves upward and negative if it moves downward. A ball is thrown upward from ground level wit an initial velocity of 64 ft per second. In how may seconds will the ball reach the given height?
a) 64ft
b)60ft

Hotel Digital has 30 floors. Step into the lift at Hotel Digital and you’ll have to think! It…

Hotel Digital has 30 floors. Step into the lift at Hotel Digital and you’ll have to think! It will only stop at floors which are multiples of the days of the week numbers.
On Monday it will go to any floor.
On Tuesdays it will only go to floors which are multiples of 2.
On Wednesdays it will only go to floors which are multiples of 3 and so on.
Which would be the best floor of the hotel to stay on if you do not like using the stairs and you plan to stay for a week? The lifts always stop at the lobby floor which is below the first floor.
If the hotel had more floors, which would be the lowest floor at which the lift would stop at every day of the week?