Suppose the difference between a sample mean and the null hypothesis mean was in the rejection region of the sampling distribution. This means that the difference is
A) probably the result of mistakes
B) unreasonable it is either too large or too small
C) probably due to chance
D) probably not due to chance.

Question

Quizplus · Accepted Answer

The difference being in the rejection region suggests that it is statistically significant and unlikely to have occurred by chance, indicating that the observed difference is probably not due to random variation.

Suppose the Difference Between a Sample Mean and the Null