Suppose we test the difference between two proportions at the 0.05 level of significance. If the z test statistic 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

Question

Quizplus · Accepted Answer

The critical values for a two-tailed test at the 0.05 level of significance are ±1.96. Since the calculated z-value (-1.07) does not fall outside the critical values, we cannot reject the null hypothesis. Therefore, the correct answer is B - Do not reject the null hypothesis.

Suppose We Test the Difference Between Two Proportions at the 0.05