45. The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose

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45. The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 60 Americans is taken to further investigate viewing habits.

Assume the population standard deviation for weekly viewing time is σ 4 hours.

a. What is the probability the sample mean will be within 1 hour of the population mean?

b. What is the probability the sample mean will be within 45 minutes of the population mean?

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Essentials Of Statistics For Business And Economics

ISBN: 9780324568608

5th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams

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Question Posted: Nov 06, 2024 06:00 AM

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45. The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose

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Essentials Of Statistics For Business And Economics

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