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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
13 Nov 2021

Given information

The sample size is 22 with a sample mean of 7.24 hours and a sample standard deviation of 1.93 hours. 

Step-by-step explanation

Step 1.

Notice that the population standard deviation is not known. Additionally, the sample size is less than 30.

Thus, it would be appropriate to use the Student's t- distribution.

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