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A random sample of 16 pharmacy customers showed the waiting times below (in minutes) 22,24,19,19,19,25,19,26,21,20,17,21,20,19,17,21 Find a 90% confidence interval, assuming that the sample is

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

22,24,19,19,19,25,19,26,21,20,17,21,20,19,17,21

Find a 90% confidence interval, assuming that the sample is from a normal population

Standard deviations should be rounded to 4 decimals

t values rounded to 3 decimals

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