When we test hypotheses of differences between means, we:
A)compare our results to that of a probability distribution.
B)test to see if our obtained difference could have happened by chance.
C)calculate a type of z-score to locate our difference on a probability distribution.
D)All of the above are correct.

Question

Quizplus · Accepted Answer

All the options describe steps or aspects of hypothesis testing involving differences between means. Comparing results to a probability distribution, testing the likelihood of the difference occurring by chance, and calculating a z-score to locate the difference on a probability distribution are all part of the process.

When We Test Hypotheses of Differences Between Means, We