Check my wo 7 A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 21 22 22 17 21 17 23 20 20 24 9 22 16 21 22 21 nts Click here for the Excel Data File Book Find a 90 percent confidence interval for , assuming that the sample is from a normal population. (Round your standard deviation Ask answer to 4 decimal places and t-value to 3 decimal places. Round your answers to 3 decimal places.) Print The 90% confidence erences interval to