X1 X2 Height, ft Diameter at breast height,in Bark thickness, in 122.0 20 1.1 193.5 36 2.8 166.5 18 2.0 82.0 10 1.2 133.5 21 2.0 156.0 29 1.4 172.5 51 1.8 81.0 11 1.1 148.0 26 2.5 113.0 12 1.5 84.0 13 1.4 164.0 40 2.3 203.3 52 2.0 174.0 30 2.5 159.0 22 3.0 205.0 42 2.6 223.5 45 4.3 195.0 54 4.0 232.5 39 2.2 190.5 36 3.5 100.0 8 1.4 a. State the multiple regression equation. SUMMARY OUTPUT Regression Statistics Multiple R 0.886444087 R Square 0.78578312 Adjusted R Square 0.761981244 Standard Error 22.59816752 Observations 21 ANOVA Regression Residual Total df SS 2 18 20 Coefficients b0 Intercept 62.14112783 b1 Diameter at breast height,in 2.05671274 b2 Bark thickness, in 15.64180216 Yhat=62.1411+2.0567X1+15.6418X2 MS 33718.47752 16859.239 9192.189151 510.67718 42910.66667 F ignificance F 33.0135 9.5E-07 Standard Error 13.50306426 0.442797529 t Stat P-value Lower 95% Upper 95% ower 95.0%pper 95.0% 4.6020019 0.000221 33.77224 90.51001 33.77224 90.51001 4.6448153 0.000201 1.12643 2.986996 1.12643 2.986996 7.148285403 2.1881894 0.042087 0.623812 30.65979 0.623812 30.65979