Question:

The following data gives annual salaries (in thousands) of

Last updated: 7/28/2022

The following data gives annual salaries (in thousands) of

The following data gives annual salaries (in thousands) of randomly chosen employees with college degrees. Some of these employees have only Bachelors' degrees and some have Masters'/PhDs. At α =0.05, can we claim that the mean salaries of employees with Bachelors' degrees are lower? Bachelors': 89 78 67 89 100 65 45 37 68 68 78 80 Masters'/PhDs: 120 130 78 69 88 101 112 160 200 88 Test using: (a) a hypothesis test (b) a confidence interval