Mathematics, 15.04.2021 17:10 tinandalp7ctf8
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?
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Mrs. Najjar is comparing the means of her two Chemistry class on their unit 1 postttest. Her null hy...
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