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The file Baseball Salaries Extra.xlsx $\_)$ darr $)$ contains the same $2018$ baseball data examined in the previous chapter. In addition, several extra categorical variables are included:

Pitcher $($Yes for all pitchers, No for the others$)$

League $($American or National$)$

Division $($National West, American East, and so on$)$

Yankees $($Yes if team is New York Yankees, No otherwise$)$

Playoff $2017$ Team $($Yes for the eight teams that made it to the $2017$ playoffs, No for the others$)$

$2$

World Series $2017$ Team $($Yes for Houston Astros and Los Angeles Dodgers, No for others$)$

Do pitchers $($or any other positions$)$ earn more than others? Does one league pay more than the other, or do any divisions pay more than others? How dbes the notoriously high Yankees payroll compare to the others? Do the successful teams from $2017$ tend to have larger $2018$ payrolls?

Objective

To learn methods for breaking down baseball salaries by various categorical variables.

Solution

It is useful to look first at some numeric summary measures for salary. These are the same summary measures from the previous chapter, but now we want to break them