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At the 10 significance level is there a difference in the

Question 1

Refer to the Baseball 2012 data, which report information on the 30 Major League Baseball teams for the 2012 season.

a. At the .05 significance level, can we conclude that there is a difference in the mean salary of teams in the American League versus teams in the National League?

b. At the .05 significance level, can weconclude that there is a difference in the mean home attendance of teams in the American League versus teams in the National League?

Question 2

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.

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