Refer to the Baseball 2012 data which report information on
Refer to the Baseball 2012 data, which report information on the 30 Major League Baseball teams for the 2012 season.
a. At the .10 significance level, is there a difference in the variation in team salary among the American and National League teams?
b. Create a variable that classifies a team’s total attendance into three groups: less than 2.0 (million), 2.0 up to 3.0, and 3.0 or more. At the .05 significance level, is there a difference in the mean number of games won among the three groups?
c. Using the same attendance variable developed in part (b), is there a difference in the mean number of home runs hit per team? Use the .05 significance level.
d. Using the same attendance variable developed in part (b), is there a difference in the mean salary of the three groups? Use the .05 significance level.

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