Question 30 1 points Save Answer Exhibit 1-1. A multiple linear regression was used to study how family spending (/) is influenced by income (1), family size (X2), and additions to savings (x3). The variables y, X1, and X3 are measured in thousands of dollars per year. The following results were obtained Source of variation Regression Residual Total ANOVA DF k = 3 n-k-1 = 26 SS SSR = 25 SSE = 85 SST = Standard Error Intercept X1 x2 x3 Coefficients 7.58 b1 = -2.35 b2 = 2.5 b3 = 0.067 0.6379 0.44 0.33 Refer to Exhibit 1-1. The adjusted R-square is O a. 0.533 O b.0.141 Oc0.152 O d. 0.120 A Click Submit to complete this assessment. Question 30 of 30 Save and Submit