STATISTICS F/BUSINESS+ECONOMICS-TEXT
13th Edition
ISBN: 9781305881884
Author: Anderson
Publisher: CENGAGE L
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Textbook Question
Chapter 11.1, Problem 8E
Consider a day when the Dow Jones industrial average went up 149.82 points. The following table shows the stock price changes for a sample of 12 companies on that day.
- a. Compute the sample variance for the daily price change.
- b. Compute the sample standard deviation for the price change.
- c. Provide 95% confidence
interval estimates of the population variance and the population standard deviation.
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Chapter 11 Solutions
STATISTICS F/BUSINESS+ECONOMICS-TEXT
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