Consider a hypothesis test to compare the difference between two population means based on independent samples.If the null hypothesis is rejected,which of the following things could have occurred?
A)A Type I error
B)An increase in the power of the test.
C)A decrease in the power of the test.
D)A Type II error
E)Both a Type I error and a Type II error

Question

Quizplus · Accepted Answer

Rejecting the null hypothesis when it is actually true results in a Type I error. Type II error involves failing to reject the null hypothesis when it is false, which cannot occur if the null hypothesis is rejected. The power of the test is related to the probability of correctly rejecting a false null hypothesis, not directly affected by a single hypothesis test outcome.

Consider a Hypothesis Test to Compare the Difference Between Two