Question

Data has been collected on the number of hospital admissions resulting from car accidents for Fridays on the 6^th of the month and Fridays on the following 13^th of the same month. Test the superstition that there is a difference between the mean admissions on the two days. Let alpha be .05.

6^th                    13^th

9                      13

6                      12

11                    14

11                    10

3                      4

5                      12

Answer 1