If we decide not to reject the idea that a sample represents a particular population,because the sample mean does not lie within the rejection region,
A)although the probability is low,our decision may be wrong.
B)the probability is high that our decision is wrong.
C)we cannot know the probability of our decision being right or wrong.
D)the probability of our decision being correct is 0.05.

Question

Quizplus · Accepted Answer

The decision to not reject the idea that a sample represents a particular population based on the sample mean not lying within the rejection region is a decision based on probability. Even though the probability of being wrong may be low, it is still possible that the decision is incorrect. Therefore, choice A is the best answer.

If We Decide Not to Reject the Idea That a Sample