Exhibit 18-4 It Has Been Hypothesized That There Is No Difference in Difference

Multiple Choice

Exhibit 18-4
It has been hypothesized that there is no difference in the mathematical accuracy of men and women. A sample of men and women were given math tests. The scores on the tests are given below.
-Refer to Exhibit 18-4. The test statistic equals (using the women as population 1)

A) -5.246
B) 0.176
C) 0.722
D) 2.5