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Final Excel Assignment

Please complete the following assignment in an attractive PowerPoint slide show alongside your Excel

spreadsheet showing the formulae.

In this assignment the MLB association has hired you as a consultant. They want you to analyze data

regarding the earnings index for relevant teams. You should give your prospective outlook for the

teams.

A. Use Excel to calculate the mean, median and mode for salary, attendance, and wins. Then, create

a histogram for each variable and discuss skewness. Display and discuss this information in your

PowerPoint.

B. Use the rule of 2𝑘 to generate a frequency table for salary, attendance, and wins. Create a relative

frequency table and a pie graph for those variables as well. Which class has the largest frequency?

Which class has the smallest frequency? Display and discuss this information in your PowerPoint.

C. Create a scatter plot between salary and attendance as well as salary and wins. Is there a direct or

indirect relationship between salary and attendance? What about the relationship between salary

and the number of wins? What are the correlation coefficients? Display and discuss this

information in your PowerPoint.

D. Calculate the standard error for salary, using the formula in your textbook, with the appropriate

sample size adjustments. Then, calculate a confidence interval around the mean associated with

an alpha of 0.05, 0.10 and 0.32. Explain in each case how confident you are that the mean falls in

that interval. Display and discuss this information in your PowerPoint.

E. Conclude your presentation with a short write up using the scientific method. You will want to

determine the critical values for a two tailed hypothesis test for the 95%, 90% and 68% levels of

confidence for salary, attendance, and wins. Display and discuss this information for each variable

on a separate slide.

1. Is the mean sample mean for salary, attendance, and wins significantly different from the

population mean for salary, attendance, and wins? (Note: the population mean for team

salary is 175, the population mean for attendance is 2758667, and the population mean

for wins is 95.) What was/were the testable hypothesis(es) from the data?

2. What statistic did you use (t-stat or z-score) and why?

3. Did you reject the hypothesis(es) or fail to reject the hypothesis(es) at the 95%, 90% and

68% levels of confidence?

4. Compute 2 regressions in Excel with salary as the dependent variable. Explain the

relationship between salary and attendance as well as the relationship between salary and

wins. Are the slope coefficients significant at the 95% level of confidence? How well is

the variation in the dependent variable explained?

5. What inference can be safely drawn from your hypothesis testing? Specifically, would

you advise the MLB association to do in the future?