In a two-tailed hypothesis about a population mean with a sample size of 100, $\sigma$ is known, and α = 0.10, the rejection region would be _______. A)z 1.64 B)z 1.28 C)z 1.28 D)z 1.64 E)z 2.33

Question

In a two-tailed hypothesis about a population mean with a sample size of 100, $\sigma$ is known, and α = 0.10, the rejection region would be _______. A)z > 1.64 B)z > 1.28 C)z < -1.28 and z > 1.28 D)z < -1.64 and z > 1.64 E)z < -2.33 and z > 2.33

Quizplus · Accepted Answer

For a two-tailed test with α = 0.10, the critical z-values are approximately -1.64 and 1.64, defining the rejection region.

In a Two-Tailed Hypothesis About a Population Mean with a Sample