Listed below are the salaries in $000 of the 30 players on the opening-day roster and the disabled list of the 2011 New York Yankees Major League Baseball team.

Sort the players into two groups, pitchers and nonpitchers (position players). Assume equal population variances for the position players and the pitchers. Conduct a test of hypothesis to determine whether the mean salaries between the two groups are the same versus the alternate hypothesis that they are not the same. Use the .01 significance level.

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Salary ($000) $16,500.0 Player Position AJ. Burmett Alex Rodriguez Andruw Jones Bartolo Colon Boone Logan Brett Gardner CC Sabathia Colin Curtis Curtis Granderson Damaso Marte David Robertson Derek Jeter Eduardo Nunez Eric Chavez Third Baseman Outfielder 900.0 1,200.0 529.5 24,285.7 420.4 8,250.0 4,000 Outfielder Outfielder Outfielder Pitcher Pitcher Shortstop Shortstop Third Baseman Catcher 14,729.3 419.3 1,500.0 455.7 Freddy Garcia Gustavo Molina Ivan Nova Joba Chamberlain Catcher Pitcher 455.0 432.9 1,400.0 13,100.0 650.0 14,911.7 23,125.0 9,100.0 3,750.0 2,700.0 10,000.0 414.0 10,000.0 Catcher Luis Ayala Mariano Rivera First Baseman Outfielder iita iita iita Second Baseman Second Baseman Catcher Nick Swisher Pedro Feliciano Phil Hughes Reegie Corona Robinson Cano Russell Martin $ 4,000.0