Question: (3pts) When we test hypothesis of differences between means , we: a. compare our results to that of a probability distribution. b. test to see

(3pts) When we test hypothesis 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.

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