The rejection region for testing the hypotheses H0: $\mu$ = 80
HA: $\mu$ < 80
At the 0.10 level of significance is:

Name: The rejection region for testing the hypotheses H0: $\mu$ = 80 HA: $\mu$ 1.96. B)Z -1.65. D)Z < -1.28.
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Question

The rejection region for testing the hypotheses H0: $\mu$ = 80 HA: $\mu$ < 80 At the 0.10 level of significance is: A)Z > 1.96. B)Z < 0.90. C)Z > -1.65. D)Z < -1.28.

Quizplus · Accepted Answer

The rejection region for a left-tailed test with a level of significance of 0.10 corresponds to a Z-score less than -1.28. Therefore, the correct answer is D.

The Rejection Region for Testing the Hypotheses H0 μ\muμ = 80 HA

The Rejection Region for Testing the Hypotheses H0 $\mu$ = 80
HA