109 112 178 176 170 118 N E 143 212 The estimated regression equation for these data is y = -11.02 + 1.92x1 + 4.42x2 Here SST = 15,105.6, SSR = 13,702.5, sb, = 0.2682, and sby = 1.0069. a. Test for a significant relationship among $1, T2, and y. Use a = 0.05. X (to 2 decimals ) The p-value is less than 0.01 At a = 0.05, the overall model is significant b. Is B1 significant? Use a = 0.05 (to 2 decimals). Use t table. X to, = The p-value is less than 0.01 At a = 0.05, B1 is significant. c. Is B2 significant? Use a = 0.05 (to 2 decimals). Use t table. x tB2 =