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A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 15 18 11 22 23 16 25 23 18 17 20

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

15 18 11 22 23 16 25 23

18 17 20 21 14 19 20 24

Find a 90% confidence interval for u assuming that the sample is from a normal population. (Round your standard deviation to 4 decimal places and the t-value to 3 decimal places. Round your answers to 3 decimal places.

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