Problem 5

* Please solve w/o programming language

l LXercise 2-now y is number of fit the regression model y + r to a. Plot the observed years experience and the predicted numbers. W why are the numbers not the same? The following data show the GPA and the job salary (5 years after hat is the sum of squares of errors? (b) Compare your results with those in Exercise 2, part (b) or (c- 4. (a) graduation) of six mathematics majors from Podunk U. GPA 2.7 3.4 3.7 8 2.3 3.1 25.000 38,00 28,000 35,000 30,000 32.000 Fit these data with a regression model of the form -qx r Plot the observed salaries and the predicted salaries. Is the regres sion fit reasonably good? (b) Repeat the calculations in part (a) by first shifting the x-values to make the average x-value be 0 [see equations (21)]. 5. Consider the following relationship between the height of a student's mother and the number of F's the student gets at Podunk U