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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