61 Refer to the Baseball 2010 data which report information

61. Refer to the Baseball 2010 data, which report information on the 30 Major League Baseball teams for the 2010 season. (http://highered.mcgraw-hill.com/sites/0073521477/student_view0/index.html)

a. Conduct a test of hypothesis to determine whether the mean payroll of the teams was different from $80.0 million. Use the .05 significance level.

b. Conduct a test of hypothesis to determine whether the mean attendance was more than 2,000,000 per team.

Solution