A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 16 21 20 24 17 11 13 20 19 18 16 24 21 21 20 16 Find a 90 percent confidence interval for μ , assuming that the...

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

Find a 90 percent confidence interval forμ, 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 _____