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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