Questions
1. When people go on a diet they should lost on average 8 pounds in the...

1. When people go on a diet they should lost on average 8 pounds in the first month of their diet. We let 68 try the “statistician’s diet” (every time you get hungry you decide to do some statistics instead) and find the average weight loss for this group of 68 people was 12 pounds with a standard deviation of 10 pounds for the first month they were on the diet.

a) At the .01 level did the diet increase the amount of weight lost? (p = 0)

b) Interpret the p-value obtained

c) Interpret the 99% confidence interval (computer says “over 14.2)

d) Based on the results of this test would you go on this statistician’s diet? Explain

e) What is the only type of error that could have occurred

In: Statistics and Probability

Components of a certain type are shipped to a supplier in batches of ten. Suppose that...

Components of a certain type are shipped to a supplier in batches of ten. Suppose that 50% of all such batches contain no defective components, 32% contain one defective component, and 18% contain two defective components. Two components from a batch are randomly selected and tested. What are the probabilities associated with 0, 1, and 2 defective components being in the batch under each of the following conditions? (Round your answers to four decimal places.)

(a) Neither tested component is defective.

no defective components     
one defective component     
two defective components     


(b) One of the two tested components is defective. [Hint: Draw a tree diagram with three first-generation branches for the three different types of batches.]

no defective components     
one defective component     
two defective components     

In: Math

Great Plains Distributors, Inc. sells roofing and siding products to home improvement retailers, such as Lowe’s...

Great Plains Distributors, Inc. sells roofing and siding products to home improvement retailers, such as Lowe’s and Home Depot, and commercial contractors. The owner is interested in studying the effects of several variables on the sales volume of fiber-cement siding products.

The company has 26 marketing districts across the United States. In each district, it collected information on the following variables: sales volume (in thousands of dollars), advertising dollars (in thousands), number of active accounts, number of competing brands, and a rating of market potential.

Sales (000s) Advertising Dollars (000s) Number of Accounts Number of Competitors Market Potential
79.3 5.5 31 10 8
200.1 2.5 55 8 6
163.2 8.0 67 12 9
200.1 3.0 50 7 16
146.0 3.0 38 8 15
177.7 2.9 71 12 17
30.9 8.0 30 12 8
291.9 9.0 56 5 10
160.0 4.0 42 8 4
339.4 6.5 73 5 16
159.6 5.5 60 11 7
86.3 5.0 44 12 12
237.5 6.0 50 6 6
107.2 5.0 39 10 4
155.0 3.5 55 10 4
291.4 8.0 70 6 14
100.2 6.0 40 11 6
135.8 4.0 50 11 8
223.3 7.5 62 9 13
195.0 7.0 59 9 11
73.4 6.7 53 13 5
47.7 6.1 38 13 10
140.7 3.6 43 9 17
93.5 4.2 26 8 3
259.0 4.5 75 8 19
331.2 5.6 71 4 9

Conduct a multiple regression analysis to find the best predictors of sales.

1. Determine the regression equation by omitting the potential variable. (Negative amounts should be indicated by a minus sign. Round the constant value to the nearest whole number and rest of the values to 2 decimal values.)

Sales = ____ + ____ advertising + _______ accounts + ________ competitors

2. Complete the following table. (Negative amounts should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.)

Predictor Coefficient SE Coefficient t p-value
Constant
Advertising
Accounts
Competitors

3. Determine the regression equation by omitting the advertising variable. (Negative amounts should be indicated by a minus sign. Round your constant value to the nearest whole number and the rest of the values to 2 decimal places.)

Sales = ______ + ______ accounts + _______ competitors

4. Complete the following table. (Leave no cells blank - be certain to enter "0" wherever required. Negative amounts should be indicated by a minus sign. Round your Coef, SE Coef and t-values to 2 decimal places.)

Predictor Coefficient SE Coefficient t p-value
Constant
Accounts
Competitors

5. Compute the variance inflation factor for the independent variables.

Variance inflation _______

In: Statistics and Probability

Ms. Taylor is 21 years old and she just obtained her MBA degree. She is considering...

Ms. Taylor is 21 years old and she just obtained her MBA degree. She is considering the following two career options:

(a)Start working now, earning an annual salary of $60,000 in each of next 44 years.

(b)Enroll in a PhD program, in 4 years and subsequent work for 40 years, earning each year the salary of $120,000.

Assume that her educational expenses at the end of each of 4 years will be $30,000. Also, assume that the relevant annual interest rate is 6% throughout, and all the annuities in the question are ordinary annuities. Based on the above information, find the implied or imputed monetary value of her PhD as of now.

In: Finance

(A) A stock price is currently AUD 40 and it is known that at the end...

(A) A stock price is currently AUD 40 and it is known that at the end of three months it will be either AUD 44 or AUD 36. We are interested in valuing a European call option.

(ii) If the delta of the above European call is 0.25, what is the delta of the European put for the same strike and maturity?

(i) Using the risk-free rate of 12% per annum; Apply stock-option replicating portfolio strategy to value this European call option when the strike is AUD 42.

(B) A stock price is currently AUD 60; the risk-free rate is 5% and the volatility σ is 30%. What is the value of a two-year American put option with a strike price of AUD 62?

In: Finance

PLEASE ANSWER ALL OF THEM. Use the following file listing called intro.txt to answer the questions....

PLEASE ANSWER ALL OF THEM.

Use the following file listing called intro.txt to answer the questions.

Make sure to use regular expressions. Number your answers 1 through 7.

The Unix operating system was pioneered by Ken Thompson and Dennis Ritchie at Bell Laboratories in the late 1960s. One of the primary goals in the design of the Unix system was to create an environment that promoted efficient program development.

1-Write the grep command to output all lines that begin with an uppercase T.

2-Write the grep command to output all lines that end with a lowercase n.

3-Write the grep command to match and output all lines that have a lowercase p followed by any single character followed by a lowercase o.

4-Write the grep command to match and output all words that contain digits.

5-Write the grep command to match and output a sequence of alphabetic letters that is exactly 9 characters long.

6-Write a command using tr to remove all spaces (all the space characters) from intro.txt

7-Write a command using sed to remove all spaces (all the space characters) from intro.txt

In: Computer Science

X Company is considering replacing one of its machines in order to save operating costs. Operating...

X Company is considering replacing one of its machines in order to save operating costs. Operating costs with the current machine are $64,000 per year; operating costs with the new machine are expected to be $35,385 per year. The new machine will cost $156,000 and will last for four years, at which time it can be sold for $1,000. The current machine will also last for four more years but will not be worth anything at that time. It cost $41,000 four years ago, but its current disposal value is only $6,000.

9. Assuming a discount rate of 7%, what is the incremental net present value of replacing the current machine?

Tries 0/3


10. Assume the following two changes: 1) both machines will last for six more years, 2) the salvage value of the new machine after six years will be zero. If X Company replaces the current equipment, what is the approximate internal rate of return?

In: Accounting

The following bonds and liabilities are given: • Bond A: A zero-coupon bond with a face...

The following bonds and liabilities are given: • Bond A: A zero-coupon bond with a face value of $100 and a time to maturity of 3 years. • Bond B: A zero-coupon bond with a face value of $100 and a time to maturity of 11 years. • Liability X: A one-time liability maturing in 4 years with the present value of $100. • Liability Y: A one-time liability maturing in 8 years with the present value of $100. Suppose you have both liabilities X and Y and want to immunize your liabilities using bonds A and B. What would be the weights of two bonds in your immunizing bond portfolio? Please round your calculation to the nearest 2nd decimal.

Select one: A. 62% in Bond A and 38% in bond B

B. 38% in Bond A and 62% in bond B

C. 50% in Bond A and 50% in bond B

D. 66% in Bond A and 34% in bond B

E. 34% in Bond A and 66% in bond B

In: Finance

Commas Insert commas where necessary in the following sentences. Some sentences, however, may not require commas....

Commas
Insert commas where necessary in the following sentences. Some sentences, however, may not require commas.


1. Well how are we going to handle this?
2. To avoid any misunderstandings it is important to tell the patient that treatments cannot be successful if appointments are missed.
3. This Wednesday I would like you to go to our St. Louis facility and assist the tech-support team for the remainder of the week.
4. I have some good news for you Amy.
5. In my office the top shelf of the bookcase you will find a revised proposal.
6. Kyle O’Dell our senior mechanic will be assigned to your crew this week.
7. Jim whom I have worked with for two years has the necessary credentials for the position.
8. The assistant behind the counter will be able to answer your questions.
9. Were all the employees able to log on to the network?
10. Charlie on the other hand believes that we should extend the maintenance special through June.
11. Have you had a chance to speak with Kyle Susan and Renee?
12. The packet includes two electrical drawings one mechanical drawing and two structural drawings.
13. The revision plans for the McFarland project are due today and we need to be sure that the corrections have been made.
14. The dedicated competent employee was recognized for her achievements.
15. We are now using the RFI form.
16. Our assignment will be challenging but exciting.
17. Jim you are planning to apply for the ADDA Scholarship aren’t you?
18. Last Monday I completed the mechanical drawings; last Thursday the electrical drawings.
19. “Kristina, your assistance this week with sterilizing hand pieces and setting up trays was greatly appreciated” said Dr. Moore.
20. On Wednesday November 18 Webster High School students will be visiting our campus.

In: Mechanical Engineering

Listed below is information on production for a firm that produces wheat. They can vary the...

Listed below is information on production for a firm that produces wheat. They can vary the number of workers. The land they use is fixed at one acre. The Wage is $ 20, The land costs $100, The wheat sells for $ 10 per unit.

# of workers | Total product

1...............................20

2................................70

3..............................130

4..............................180

5...............................210

6................................220

7.................................222

3) With 4 workers TOTAL COST is equal to ?

4) With 6 workers TOTAL REVENUE equal to?                   

5)With 7 workers, TOTAL PROFIT is equal to ?

6) If all these workers have the same level of skill, why does worker 6 have a LARGER marginal product than worker 7 ?

7) How many workers should this firm hire to maximize its profits ?

8) If this firm does hire the number of workers you answered for question (7), they will have TOTAL PROFITS equal to ?

9) If all these workers have the same skill level, why does worker 3 have a LARGER MPL than worker 2 ?

10) What is the amount of TOTAL FIXED costs for this firm and for all firms in the SHORT run.?

In: Economics