Section 17.2 Exercise 3 Question Help How well do exams given during the semester predict performance...
Section 17.2 Exercise 3 Question Help How well do exams given during the semester predict performance on the final? One class had 3 tests during the semester. Computer output of the regression is given below. a) Write the equation of the regression model. Let X1, X2, and xz be the predictor variables for test 1, test 2, and test 3 respectively. Let y be the predicted final exam score. What is the regression equation? y=+ x + x2 Dependent variable is Final s = 13.45 R-sq = 77.7% R-Sq(adj) = 74.1 Predictor Coef SE(Coef) Intercept -6.79 16.00 -0.42 Test10.2560 0.2275 1.13 Test2 0.3914 0.2195 1.78 Test3 0.9013 0.2081 4.33 P-val 0.6795 0.2733 0.0920 0.0920 (Use integers or decimals for any numbers in the expression.) Analysis of Variance (ANOVA) Source DF SS Regression 3 11960. 5 Error 19 3439.2 22 15399.7 F 22.03 P -val < 0.0001 MS 3 986.8 181.0 700.0 Total