The following is the ANOVA summary table for a multiple regression model with two independent variables:

If SSR(X1) = 20 and SSR(X2) = 15,
a. Determine whether there is a significant relationship between Y and each independent variable at the 0.05 level of significance.
b. Compute the coefficients of partial determination, r2Yl.2 and r2Y2.1 and interpret their meaning.

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Degrees of Sum of Mean Freedom S Source uares Squares F Regression Error 10 12 120 150 Total