For a one-tailed hypothesis test, the critical z-value of the test statistic is -2.33. Which of the following is true about the hypothesis test?
A) $\alpha$ = 0.05 for a lower-tailed test
B) $\alpha$ = 0.01 for a lower-tailed test
C) $\alpha$ = 0.05 for an upper-tailed test
D) $\alpha$ = 0.01 for an upper-tailed test

Question

Quizplus · Accepted Answer

A critical z-value of -2.33 corresponds to an $\alpha$ level of 0.01 for a lower-tailed test.

For a One-Tailed Hypothesis Test, the Critical Z-Value of the Test