Listed below are the 25 players on the opening day roster
Listed below are the 25 players on the opening-day roster of the 2013 New York Yankees Major League Baseball team, their salaries, and fielding positions.


Sort the players into two groups, pitchers (P) and non-pitchers (position players). Assume equal population standard deviations for the position players and the pitchers. Test the hypothesis that mean salaries of pitchers and non-pitchers are equal using the .01 significancelevel.
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