Listed below are speeds (in mi/h) of cars on the New Jersey Turn¬pike by race of the driver. All cars are going in the same direction, and all of the cars are from New Jersey. The data are from Statlib and the authors are Joseph Kadane and John Lamberth.

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White drivers: 74 77 69 7 77 69 72 75 74 72 African American drivers: 79 70 71 76 76 74 71 75 74 74