Since you have the DASL data on brain size, note that it also includes the variables of height and weight. Predict weight from height and sex and compare with the answer for Exercise 11.17.
Answer to relevant QuestionsIn examples like the Guber study on the funding of education, we frequently speak of variables like PctSAT as “nuisance variables.” In what sense is that usage reasonable here, and in what sense is it somewhat ...In Exercise 11.2, the column headed “Tolerance” (which you have not seen before) gives you 1 minus the squared multiple correlation of that predictor with all other predictors. What can you now say about the ...The data referred to in Exercise 12.10 (in pounds gained) follow. Run the appropriate t test and draw the appropriate conclusions. Are the confidence limits that you calculated in Exercise 12.18 consistent with the results of the t test in Exercise 12.17? Using the data from Table 11.1, compute the 95% confidence limits on the Pupil/Teacher ratio across the 50 states.
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