Find out a 90 percent confidence interval for mu supposing, Ask an Expert

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A random sample of 16 pharmacy customers showed waiting times below (in minutes).

21 22 22 17 21 17 23 20

20 24 9 22 16 21 22 21

Required:

Find out a 90 percent confidence interval for μ, supposing that the sample is from the normal population.

The 90% confidence interval .............to..............

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