For all tests of hypothesis,the probability of rejecting the null hypothesis is a function of
A)the size of the observed differences.
B)the alpha level and the use of one- or two-tailed tests.
C)sample size.
D)all of the above

Question

Quizplus · Accepted Answer

All of the listed factors affect the probability of rejecting the null hypothesis. The size of the observed differences determines the effect size, which in turn affects the power of the test. The alpha level and use of one- or two-tailed tests determine the critical value(s) for the test and the area(s) of the distribution for which the null hypothesis will be rejected. Sample size affects both the effect size and the precision of the estimate, which can influence the power of the test. Therefore, all of these factors must be considered when conducting and interpreting tests of hypothesis.

For All Tests of Hypothesis,the Probability of Rejecting the Null