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
-For a one-tailed test, the critical value:

A) divides the sampling distribution into three parts.
B) is the number of standard errors away from the sample mean.
C) helps determine if the test statistic falls in the rejection region or not.
D) fails to reject the null hypothesis if the test statistic exceeds the critical value.