Suppose the p-value for your hypothesis test for a difference of two means was .001.Which of the following is an appropriate conclusion?
A)You reject the null hypothesis.
B)If there really was no difference in the population means, we would see results as extreme as these only .1% of the time.
C)You conclude that there is a statistically significant difference between the population means.
D)All of the above.

Question

Quizplus · Accepted Answer

A) A p-value of .001 is significant at the standard alpha level of .05, so you would reject the null hypothesis.
B) This statement is true and reinforces the significance of the result.
C) This is also true and is a common way to describe the result of a hypothesis test with a significant p-value.
Therefore, all options are appropriate conclusions.

Suppose the P-Value for Your Hypothesis Test for a Difference