When we test hypothesis of differences between means we A co

When we test hypothesis of differences between means, we: A) compare ours 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

Solution

When we test hypothesis of differences between means, we:

D) all of the above are correct

we use Z-score

we compare our results with a probability distribution and

we see if our difference is appropiate