Answer Happy

A local defensive-driving school advertises that students completing their course prior to obtaining their drivers' license are more likely to drive less than the posted 75 mph speed limit than new drivers without any formal driving school training. To test this theory they sampled vehicle speeds of both classes of drivers (with driving school, and without driving school). The following table contains the average speeds for each group. Assume the population variances are equal. Use a = = 0.05. For this question: Compute the Pvalue. You can download this table into Excel using the link provided. Excel File with data: average speeds.xlsx Driving School = Yes Driving School - No 75.83 72.13 80.12 73.87 65.41 66.09 70.03 68.43 73.91 71.45 76.02 75.10 67.89 81.12 77.67 73.67 70.19 65.34 75.31 70.92