Calculate the adjusted R2 for the 15 cases in Exercise 11.6. Twice in this chapter I said that we were going to ignore the adjusted R2, even though it is a perfectly legitimate statistic. Can you tell what it is “adjusting” for?
Answer to relevant QuestionsThe state of Vermont is divided into 10 health-planning districts, which correspond roughly to counties. The following data represent the percentage of live births of babies weighing under 2,500 grams (Y), the fertility rate ...Compute 95% confidence limits on m for the data in Exercise 12.11. In Exercise 12.11. Are the confidence limits that you calculated in Exercise 12.18 consistent with the results of the t test in Exercise 12.17? Why do the data in Exercise 12.6 not really speak to the issue of whether education in North Dakota is generally in good shape? In Section 13.4 I explained that by removing subject-to-subject variability from the data, related- samples designs prevent this variability from influencing the data on which the t test is run. This increases our ability to ...
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