A researcher is conducting an experiment to evaluate a treatment that is expected to increase the scores for individuals in a population.If the researcher uses a one-tailed test with $\alpha$ = .01, then which of the following correctly identifies the critical region? A)z 2.33 B)z 2.58 C)z

Question

A researcher is conducting an experiment to evaluate a treatment that is expected to increase the scores for individuals in a population.If the researcher uses a one-tailed test with $\alpha$ = .01, then which of the following correctly identifies the critical region? A)z > 2.33 B)z > 2.58 C)z < 2.33 D)z < 2.58

Quizplus · Accepted Answer

For a one-tailed test with $\alpha$ = .01, the critical region is in the upper tail. The critical z-value for $\alpha$ = .01 in a one-tailed test is approximately 2.33.

A Researcher Is Conducting an Experiment to Evaluate a Treatment α\alphaα

A Researcher Is Conducting an Experiment to Evaluate a Treatment $\alpha$