A 2017 USA Today article reports that NCAA football coaches’ salaries have continued to increase in recent years (USA Today). The annual base salaries for the previous head football coach and the new head football coach at 23 schools are given in the file Coaches.

a. Determine the median annual salary for a previous head football coach and a new head football coach.

b. Compute the range for salaries for both previous and new head football coaches.

c. Compute the standard deviation for salaries for both previous and new head football coaches.

d. Based on your answers to (a) to (c), comment on any differences between the annual base salary a school pays a new head football coach compared to what it paid its previous head football coach.