Suppose we test the difference between two proportions at th

Suppose we test the difference between two proportions at the 0.05 level of significance. If the computed z is -1.07, what is our decision?

a.Reject the null hypothesis

b. Do not reject the null hypothesis

c. Take a larger sample

d. Reserve judgment

Solution

Using table/technology, the two tailed P value for z = -1.07 is

P value = 0.2846

Thus, as P > 0.05, we

OPTION B: DO NOT REJECT THE NULL HYPOTHESIS. [ANSWER, B]