The ages of 40 individuals who reported migraine headaches in a certain sample are: 22, 22, 25, 26, 30, 30, 30, 33, 35, 36, 38, 39, 39, 39, 42, 45, 45, 45, 45, 45, 46, 47, 47, 47, 48, 48, 49, 52, 54, 56, 58, 58, 65, 68, 69, 69, 74, 75, 75, 83.
Create a box and whisker plot and identify the five data values. Find the sample mean and standard deviation for the data set. For ages of 49 and 75 years, find the associated z-scores.