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 null hypothesis is to be tested at the 5% level. The decision rule is not to reject the null hypothesis if

Question

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 null hypothesis is to be tested at the 5% level. The decision rule is not to reject the null hypothesis if
A)-1.96 < z < 1.96 
B)-1.645 < z < 1.645 
C)z > 1.96 or z < -1.96 
D)the number of "+" signs is greater than or equal to 2 but less than or equal to eight

Quizplus · Accepted Answer

At a 5% significance level for a two-tailed test, the critical z-values are -1.96 and 1.96. The null hypothesis is not rejected if the test statistic falls between these values.

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