Recall that the file Baseball Salaries 2009 Extra.xlsx contains data on 818 Major League Baseball (MLB) players during the 2009 season. Use StatTools to find the mean, median, standard deviation, and first and third quartiles of Salary, broken down by each of the following categories. Comment on your findings.
a. Team
b. Division
c. Whether they played for the Yankees
d. Whether they were in the playoffs