Demonstrate that, because we have equal sample sizes, I would have arrived at the same answer in Section 14.10 if I had not pooled the variances, although the degrees of freedom would probably differ.
Answer to relevant QuestionsUse MYSTAT or other software to repeat the results for Exercise 14.8. Exercise 14.8. The data follow: In Exercise 14.8 why might it be smart to look at the variances of the two groups? Make up a simple two-group example to demonstrate that for a total of 30 subjects, power increases as the sample sizes become more nearly equal. In Section 12.3 we looked at a set of data on whether children who are stressed from their parents’ divorce tend to tell us what they think we want to hear, rather than what they really feel. For those data the test on H0 ...Calculate d^ for the comparisons you made in Exercise 16.10 and interpret the meaning of each.
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