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A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 22 14 25 15 19 15 17 21 15 16 23

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

22	14	25	15	19	15	17	21
15	16	23	16	29	21	22	21

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

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