Question 2 (10 marks) The following output is from a linear regression of exam scores against testl scores and test2 scores for students doing a statistics course in their second year. Model Summary Model R R Square Adjusted R Square Std. Error of the Estimate 1 .710 a 504 475 7.82967 ANOVA Model Sum of df Mean Square F Sig. Squares Regression 2119.650 2 1059.825 17.288 .0002 Residual 2084.328 34 61.304 Total 4203.978 36 Coefficients a Unstandardized Standardized Coefficients Coefficients Model B Std. Error Beta t Sig. 1 (Constant) 13.7 10.39 1.317 . 197 Test1 Score 26 .14 250 1.830 076 Test2 Score 48 12 .558 4.082 .000