A state highway patrol was interested in knowing whether frequent patrolling of highways substantially rcduces the number ot speeders. Two similar interstate highways were selected for the studyone heavily patrolled and the other only occasionally patrolled. After 1 month, random samples of 100 cars were chosen on each highway, and the number of cars exceeding the speed limit was recorded. This process was repeated on five randomly selected days. The data arc shown in the following table.

Highway 1 Highway 2 Day (heavily patrolled) (occasionally patrolled)

Use a nonparametric procedure to determine whether the heavily patrolled highway tends to have fewer speeders per 100 cars than the occasionally patrolled highway. Test using cu = .05.