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Back to 8.2 A Single Population Mean using the Student t Distribution

8.2 Exercise 12

Avg difficulty 2.5


Use the following information to answer the next six exercises: One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was revealed that they watched an average of 151 hours each month with a standard deviation of 32 hours. Assume that the underlying population distribution is normal.

Define the random variable X ¯ \bar{X} in words.

OpenStax Introductory Statistics 2e, 8.2 A Single Population Mean using the Student t Distribution, exercise 12

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Adapted from Introductory Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Statistics 2e. Imported at revision 50ec917.