a. Conduct a test of hypothesis to determine whether the mean salary of the teams was different from $80.0 million. Use the .05 significance level.
Data
Salary 2012 74.3 83.3 81.4 173.2 88.2 96.9 82.2 78.4 78.1 132.3 60.7 60.9 154.5 95.1 118.1 97.7 94.1 93.4 198 55.4 174.5 63.4 55.2 117.6 82 110.3 64.2 120.5 75.5 81.3