Mathematics, 06.12.2020 20:20 bandchick527
3) Mrs. Najjar is comparing the means of her two Chemistry class on their unit 1 postttest. Her null hypothesis is
that there is no difference between the scores for the two classes. The difference in the sample means is 40
points with a standard deviation of the difference of the sample mean of 15 points. What is the 68% confidence
interval - how much would you add or subject from the mean AND find the actual interval?
Answers: 2
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3) Mrs. Najjar is comparing the means of her two Chemistry class on their unit 1 postttest. Her null...
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