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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
16 Nov 2021

Given information

Sample size is n=70. Sample standard deviation is 0.5 hours and sample mean is 1.5 hours.

From the previous task, the 95% confidence interval for the population mean is  

Step-by-step explanation

Step 1.

The 95% confidence interval for the population mean , , implies that it can be stated with 95% confidence that the true population mean lies between 1.38 hours and 1.62 hours.

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