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1.Test whether females get a higher or lower speeding ticket using the two-sample t-test

formula. Then check your work using a regression.

2. Test whether speeding results in a different ticket amount for men in comparison to

women using a regression. Interpret any relevant coefficients to answer this question.

          a) Draw the partial regression figure between ticket amount and miles per hour over the speed

limit for a man and a woman on the same plot. You can do this by hand.

         b) What is the difference in expected ticket amount between a man and a woman that drove 15

miles per hour over the speed limit? Draw this difference on your partial regression figure.