Fundamentals of Statistics, Books a la Carte Edition Plus MyLab Statistics with Pearson eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780134763699
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter B.2, Problem 16AYU
Investment Risk Investors not only desire a high return on their money, but they would also like the rate of return to be stable from year to year. An investment manager invests with the goal of reducing volatility (year-to-year fluctuations in the rate of return). The following data represent the rate of return (in percent) for his mutual fund for the past 12 years.
- (a) Verify that the data are
normally distributed by constructing a normalprobability plot. - (b) Determine the sample standard deviation.
- (c) Construct a 95% confidence interval for the population standard deviation of the rate of return.
- (d) The investment manager wants to have a population standard deviation for the rate of return below 6%. Does the confidence interval validate this desire?
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Chapter B.2 Solutions
Fundamentals of Statistics, Books a la Carte Edition Plus MyLab Statistics with Pearson eText -- Access Card Package (5th Edition)
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