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12. FILE Scrapper Elevator Company has 20 sales representatives who sell its product throughout the United States and Canada. The number of units sold last month by each representative is listed below. Assume these sales figures to be the population values. 2 3 2 3 3 4 2 4 3 2 2 7 3 4 5 3 3 3 3 5 a. Draw a graph showing the population distribution. b. Compute the mean of the population. c. Select five random samples of five each. Compute the mean of each sample. Use the methods described in this chapter. Using a random number table (Appendix B.4) or statistical software, select the items to be included in the sample. d. Compare the mean of the sampling distribution of the sample mean to the population mean. Would you expect the two values to be about the same? e. Draw a histogram of the sample means. Why are the two distributions different? requency

12. FILE Scrapper Elevator Company has 20 sales representatives who sell its product throughout the United States and Canada. The number of units sold last month by each representative is listed below. Assume these sales figures to be the population values. 2 3 2 3 3 4 2 4 3 2 2 7 3 4 5 3 3 3 3 5 a. Draw a graph showing the population distribution. b. Compute the mean of the population. c. Select five random samples of five each. Compute the mean of each sample. Use the methods described in this chapter. Using a random number table (Appendix B.4) or statistical software, select the items to be included in the sample. d. Compare the mean of the sampling distribution of the sample mean to the population mean. Would you expect the two values to be about the same? e. Draw a histogram of the sample means. Why are the two distributions different? requency

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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12. FILE Scrapper Elevator Company has 20 sales representatives who sell its product throughout the United States and Canada. The number of units sold last month by each representative is listed below. Assume these sales figures to be the population values. 2 3 2 3 3 4 2 4 3 2 2 7 3 4 5 3 3 3 3 5 a. Draw a graph showing the population distribution. b. Compute the mean of the population. c. Select five random samples of five each. Compute the mean of each sample. Use the methods described in this chapter. Using a random number table (Appendix B.4) or statistical software, select the items to be included in the sample. d. Compare the mean of the sampling distribution of the sample mean to the population mean. Would you expect the two values to be about the same? e. Draw a histogram of the sample means. Why are the two distributions different? requency
Transcribed Image Text:12. FILE Scrapper Elevator Company has 20 sales representatives who sell its product throughout the United States and Canada. The number of units sold last month by each representative is listed below. Assume these sales figures to be the population values. 2 3 2 3 3 4 2 4 3 2 2 7 3 4 5 3 3 3 3 5 a. Draw a graph showing the population distribution. b. Compute the mean of the population. c. Select five random samples of five each. Compute the mean of each sample. Use the methods described in this chapter. Using a random number table (Appendix B.4) or statistical software, select the items to be included in the sample. d. Compare the mean of the sampling distribution of the sample mean to the population mean. Would you expect the two values to be about the same? e. Draw a histogram of the sample means. Why are the two distributions different? requency
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