Home Pros sells supplies to “do-it-yourselfers.” One of the things the company prides itself on is fast service.

It uses a number system and takes customers in the order they arrive at the store. Recently, the assistant manager tracked the time customers spent in the store from the time they took a number until they left. A sample of 16 customers was selected and the following data (measured in minutes) were recorded:

15 14 16 14 14 14 13 8 12 9 7 17 10 15 16 16

a. Compute the mean, median, mode, range, interquartile range, and standard deviation.

b. Develop a box and whisker plot for these data.