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

26 16 25 18 17 24 18 23

14 20 10 18 19 13 17 16

Find a 90 percent confidence interval for u 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)

The 90% confidence interval _______ to ________