Using software with the FL Student Survey data file on the text CD, conduct regression analyses relating y = high school GPA and x = hours of TV watching. Prepare a two-page report, showing descriptive and inferential methods for analyzing the relationship.
Answer to relevant QuestionsRefer to the previous exercise. Now let x = number of classes skipped and y = college GPA. a. Construct a scatter-plot. Does the association seem to be positive or negative? b. Find the prediction equation and interpret the ...Does regression toward the mean imply that, over many generations, there are fewer and fewer very short people and very tall people? Explain your reasoning. Refer to the previous exercise. In view of these assumptions, indicate why such a model would or would not be good in the following situations: a. x = year (from 1900 to 2005), y = percentage unemployed workers in the United ...For countries listed in the Twelve Countries data file on the text CD, y = Internet use (percent) is predicted by x1 = per capita GDP (gross domestic product, in thousands of dollars) with r2 = 0.88. Adding x2 = carbon ...The P-value of 0.17 in part a of the previous exercise suggests that LP_200 plausibly had no effect on BP, once BP_60 is in the model. Yet when LP_200 is the sole predictor of BP, the correlation is 0.58 and the significance ...
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