A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 16 18 11 15 21 22 19 24 The 90% confidence interval 19 23 16 20 Answer is complete but not entirely correct. 21.762 to Click here for the Excel Data File Find a 90 percent confidence interval for μ, 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.) 20 17 26.238 3 20

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