State How to Increase the Power of a Test

Multiple Choice

State how to increase the power of a test.
Compare and contrast the major types of hypothesis testing for one-sample tests
-Which of the following is true about the rejection region?

A) The rejection region is chosen to determine the probability of a Type I error.
B) With a true null hypothesis, the test statistic falls into the rejection region.
C) If the test statistic is in the nonrejection region, the null hypothesis is rejected.
D) The rejection region occurs in the tails of the sampling distribution of the test statistic.