7. A researcher was once criticized for falsifying data. Among his data were figures obtained from 55 groups of rats​, with 44 individual rats in each group. These values were given for the percentage of successes in each​ group: 53%,​ 58%, 63%, ​46%, 48% nothing. ​What's wrong with those​ values?

A. All percentages of success should be multiples of 5. The given percentages cannot be correct.

B.All percentages of success should be multiples of 4.The given percentages cannot be correct.

C.All percentages of success should be multiples of 25. The given percentages cannot be correct.

D.All percentages of success should be multiples of 8. The given percentages cannot be correct.

8. Determine whether the underlined number is a statistic or a parameter. In a study of all 4229 employees at a college,  it is found that Modifying 45 % with underline own a computer.

A. Parameter because the value is a numerical measurement describing a characteristic of a population.

B. Statistic because the value is a numerical measurement describing a characteristic of a population.

C. Statistic because the value is a numerical measurement describing a characteristic of a sample.

D. Parameter because the value is a numerical measurement describing a characteristic of a sample.

9. Determine whether the value given below is from a discrete or continuous data set. In a test of a method of gender selection comma 683 couples used the XSORT method and 528 of them had baby girls.

A. A continuous data set because there are infinitely many possible values and those values can be counted can be counted.

B. A discrete data set because there are a finite number of possible values

C.A continuous data set because there are infinitely many possible values and those values cannot be counted

D.The data set is neither continuous nor discrete.

10. Determine whether the value is from a discrete or continuous data set.

Number of coins in a jar is 78

Is the value from a discrete or continuous data​ set?​​

A. Continuous

B. Discrete

11. Determine whether the description corresponds to an observational study or an experiment.

Thirty university students are divided into two groups. One group receives free tutoring in mathematics, the other doesn't. After one semester, scores on final mathematical examinations are compared.

Does the description correspond to an observational study or an​ experiment?

A. Observational study

B. Experiment

After receiving your bachelor’s degree in personnel management, you were hired by a small but expanding life insurance company. Your first assignment is to develop a more efficient technique for the preliminary screening of applicants for sales positions. Since the firm employs only college graduates, you decide to work with information focusing on their performance during college. A random sample of 25 from the firm’s current sales force is selected and the following information is obtained:

Last year’s performance evaluation score

College grade point average (GPA)

Percent of total college expenses earned by the individual

Number of social organizations the individual belonged to

                                    Percent of       Number of

Performance               Expenses         Social

Score               GPA    Earned                        Organizations

43                    2.1       50                    2

47                    2.8       20                    5

53                    2.6       10                    3

56                    2.7       60                    1

57                    3.8       0                      0

64                    2.6       30                    2

68                    3.2       10                    1

68                    2.8       30                    2

74                    2.6       10                    2

75                    2.9       40                    1

77                    3.0       30                    0

78                    3.2       15                    1

81                    3.4       20                    2

83                    2.8       40                    3

87                    2.6       60                    5

88                    3.1       50                    0

89                    2.4       80                    4

90                    3.3       10                    2

91                    2.9       50                    6

92                    3.5       40                    1

93                    3.7       30                    2

94                    3.1       20                    5

95                    3.6       70                    1

96                    3.2       10                    4

97                    3.4       40                    0

On the basis of the data obtained, what recommendations can you make regarding the preliminary screening of applicants for sales positions?

1. A marketing research team at Optimum Nutrition is interested in knowing the proportion of Americans who exercise at least three times a week. They send out a survey asking "Do you exercise more than 3 times a week?" to over 5,000 random Americans.

Given the following scenario, is this problem a One Mean, One Proportion, Two Independent Means, or Paired Means?

Group of answer choices

a. One Mean

b. Two Independent Means

c. Paired Means

d. One Proportion

2. On average, how much is the difference in calories burned between regular and standing desks? The amount of calories that 8 employees burned was recorded by using a regular desk for a day, and then with using a standing desk. The data is recorded in the table below. Compute a 95% confidence interval for the population mean difference. (dif = standing - regular)

Group of answer choices

a. (-6.91, 10.66)

b. (-10.66, -6.91)

c. (-10.66, 6.91)

d. (6.91, 10.66)

3. A movie theater wanted to see if they could increase attendance by offering a free digital copy of a movie with ticket purchase. They randomly picked 10 different theaters to test the new program at and tested each of these theaters on two random days, once with the program and once without. The resulting attendance that was recorded is shown in the table below. Find dbar and s_d using (with-without).

Group of answer choices

a. dbar= 1.9 sd= 6.08

b. dbar= -1.9 sd= -1.14

c. dbar= 1.9 sd= -1.14

d. dbar= -1.9 sd= -6.08

Present the six tasks below in 12-point font with particular attention given to APA style. Use the terms between, among, and statistically significant carefully! Remember, the text PDF files contain APA examples.

1. Using APA style, write a clear and concise sentence that presents the mean and standard deviation data from deliverable one.

Deliverable 1

For each group listed in the table below, list the following (to two decimal places - e.g., 17.54)

1. Mean

2. Median

3. Mode

4. Standard deviation (sample)

5. Variance (sample)

6. n (count)

7. df (degrees of freedom) - hint df = n - 1

2. Using APA style, write a clear and concise sentence that presents the Person Product Moment Correlation results from deliverable two.

Deliverable 2

Pearson Correlation

Use the Pearson Correlation to analyze the data below.

1. Report the strength (number) of the correlation.

2. Is the correlation statistically significant (alpha .05 two-tailed)?

3. Using APA style, write two clear and concise sentences that present (1) the mean and standard deviation data from deliverable three and (2) the results from the t test in deliverable three.

Independent-Measures t Statistic (2 sample assuming = variances)

For the data below -

1. Write H₀
2. Write H₁
3. Compute and report the results for the t statistic (using Excel) (hint also compute descriptive statistics to help with d6); use (α = .05) – two tailed - 2 sample assuming = variances)
4. Retain or reject H₀

4. Using APA style, write a clear and concise sentence that presents the ANOVA results from deliverable four.
5. Create an APA style table that presents the mean and standard deviation data for the three conditions from deliverable four.

Deliverable 4

ANOVA

For the data below -

1. Write H₀
2. Write H₁
3. Compute and report the F statistic ANOVA (using Excel); use (α = .05) - ANOVA (single factor); hint also compute descriptive statistics to help with d6 (2 points)
4. Retain or reject H₀

6. Using APA style, write a clear and concise sentence that presents the Tukey HSD results from deliverable five.

Deliverable 5

Based on the findings for deliverable four, determine if a post hoc test is necessary. If necessary:

1. Run and report the results for the Tukey HSD
2. Present the M and SD (in table form) for each condition; use the Excel ANOVA variance for the basis of these calculations!
3. Identify which conditions have an honestly significant difference.

Northwood Company manufactures basketballs. The company has a ball that sells for $23. At present, the ball is manufactured in a small plant that relies heavily on direct labor workers. Thus, variable costs are high, totaling $15 per ball, of which 65% is direct labor cost.

Last year, the company sold 30,000 of these balls, with the following results:                

5. Refer to the data in (point 4) above. If the expected change in variable costs takes place, how many balls will have to be sold next year to earn the same net operating income $90,000 as last year?

6. Refer again to the data in (point 4) above. The president feels that the company must raise the selling price of its basketballs. If Northwood Company wants to maintain the same CM ratio as last year, what selling price per ball must it charge next year to cover the increased labor costs?

7. Refer to the original data. The company is discussing the construction of a new, automated manufacturing plant. The new plant would slash variable costs per ball by 40%, but it would cause fixed costs per year to double. If the new plant is built, what would be the company’s new CM ratio and new break-even point in balls?

8. Refer to the original data. Find the multi-product breakeven point, if the company decides to produce another types of balls (of higher quality) it is expected that the sell at a price of $40 of which 60% is variable cost and no more fixed cost is required. If the company is expecting to have sales at a value of 890,000 of which this new balls would be about 20% of the total sales value. All information related to the original types of balls remains the same.

Excel Online Structured Activity: Recapitalization

Currently, Forever Flowers Inc. has a capital structure consisting of 25% debt and 75% equity. Forever's debt currently has an 7% yield to maturity. The risk-free rate (r_RF) is 4%, and the market risk premium (r_M - r_RF) is 5%. Using the CAPM, Forever estimates that its cost of equity is currently 12%. The company has a 40% tax rate. The data has been collected in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below. Do not round intermediate calculations.

Open spreadsheet

1. What is Forever's current WACC? Round your answer to two decimal places.

   %

2. What is the current beta on Forever's common stock? Round your answer to two decimal places.

3. What would Forever's beta be if the company had no debt in its capital structure? (That is, what is Forever's unlevered beta, b_U?) Round your answer to two decimal places.

   Forever's financial staff is considering changing its capital structure to 40% debt and 60% equity. If the company went ahead with the proposed change, the yield to maturity on the company's bonds would rise to 10%. The proposed change will have no effect on the company's tax rate.

4. What would be the company's new cost of equity if it adopted the proposed change in capital structure? Round your answer to two decimal places.

   %

5. What would be the company's new WACC if it adopted the proposed change in capital structure? Round your answer to two decimal places.

   %

6. Based on your answer to part e, would you advise Forever to adopt the proposed change in capital structure?

   _____YesNo

Check My Work

Reset Problem

The most recent balance sheet is as follow:

The firm estimates sales will increase from $40 million to $50 million. The firm's profit margin is 5 percent, and its dividend payout ratio is 40 percent. The firm’s fixed assets were used to only 96% of the capacity.

Using the AFN formula method, determine how much outside financing is required.

Expand the following equation by plugging numbers in the last term.

Triple Z, is providing car maintenance services for their customers in England, The Company is aiming to expand their business in the UK by establishing car services stations in Scotland. This project will cost the company £50 million. Triple Z decided to establish a separate company for this project and to name it Z Highlands. Z Highland plans to finance this project using 40% equity and 60% debt. T-bond annual rate 6.0%. Expected return on FTSE500 is 15%. The Variance of FTSE500 returns is 2. The covariance between FTSE500 and Triple Z is 1.6. Triple Z has had no debt for the last 5 years. (i.e. Debt/Equity = 0). The tax rate is 40%. Required: a) Calculate the following:

i) The Beta and cost of equity the Triple Z.

ii) The levered beta and the cost of equity for Z Highlands.

1. The tax officials at the Internal revenue Service (IRS) are constantly working toward improving the wording and format of the tax returns. As part of a larger effort to help taxpayers, the Internal Revenue Service plans to streamline one of the forms into a shorter and simpler form for the 2021 tax season.

2. Upon successful completion of this exercise, the new form, – about half the size of the current version – would replace the previous ones and will be shared with the tax community for the feedback. The new Form uses a “building block” approach, in which the tax return is reduced to a simple form. That form can be supplemented with additional schedules if needed. Taxpayers with straightforward tax situations would only need to file this new form with no additional schedules.

To finalize this exercise, the IRS have developed three new forms, and to determine which, if any, are superior to the current forms, 120 individuals were asked to participate in an experiment. Each of the three new forms and the currently used form were filled out by 30 different people. The amount of time (in minutes) taken by each person to complete the task was recorded. The data collected is attached in the Excel file named: Tax Forms worksheet.

You are expected to analyze the project in two phases:

Phase1:

1. a) Describe the problem background, objective of study and identify the type of scale of measurement for the data

2. b) Use appropriate descriptive statistics to explore and summarize the data for Tax form 2 & 3 and compare their results. Remember to interpret the findings accurately and present them in a clear and coherent way.

3. c) Assuming data for Form 2 is normally distributed, calculate the parentage of people who completed the form between 83.9 and 107.5 minutes (round the descriptive statistics numbers to one decimal)

4. d) If the filling time of all IRS forms is distributed normally with mean of 102 and standard deviation of 8, what is the probability that a randomly selected person could do the tax forms in less than 90 minutes?

e) Referring to problem “d” above, If a randomly selected person is in the top 5 percent of the fastest people who do the tax forms, at least how many minutes should he spent to fill out the form?

"Excel sheet numbers:

Taxpayer Form 1 ------Form 2------- Form 3 ------Form 4

1-------------- 109 ------------115 ----------126 -----------120

2-------------- 98 -------------103 ----------107 -----------108

3 -------------29 --------------27------------ 53------------- 38

4------------ 93 ---------------95 ------------103---------- 109

5------------ 62--------------- 65------------ 67------------- 64

6 -----------103------------- 107----------- 111----------- 128

7------------ 83-------------- 82------------ 101------------ 116

8------------ 122------------ 119----------- 141----------- 143

9 -------------92------------ 101----------- 105------------ 108

10------------ 107--------- 113------------- 127----------- 113

11------------ 103---------- 111------------ 111------------ 108

12------------ 54------------ 64-------------- 67-------------62

13------------ 141---------- 145----------- 142------------160

14------------ 92------------ 94------------- 95-------------102

15 ------------29 -----------32------------- 33---------------62

16----------- 83------------- 83------------ 89-------------- 86

17------------ 34 -----------36 ------------40---------------48

18 ------------83----------- 86------------- 90-------------119

19------------ 157---------- 157----------- 172-----------193

20------------- 99---------- 107------------- 111-----------100

21----------- 118----------- 123------------- 117----------130

22------------ 58----------- 65--------------- 75-------------81

23 ------------66----------- 71---------------- 79------------81

24------------ 60----------- 60--------------- 78------------ 41

25 ------------102---------- 106------------ 100---------- 142

26 -------------128---------- 134------------ 135--------- 142

27---------------87---------- 93------------- 90------------ 77

28--------------126-------- 134----------- 129----------- 154

29----------- -133---------- 130----------- 148----------- 164

30------------ 100----------- 112---------- 107----------- 120

Shop Til you drop: Corporate in the real world

To understand more about corporate culture, visit two retail stores and compare them according to various factors. Go to one discount or low-end store such as Kmart, or Walmart, and to one high-end store, such as Saks Fifth Avenue or Nordstrom. Do not interview any employees, but instead be an observer or a shopper. After your visits, fill out the following table for each store. Spend at least two hours in each store on a busy day and be very observant.