The SAS System 09:01 Tuesday, March 7, 2000 1 Correlation Analysis 3 'VAR' Variables: PRICE DOM WEIGHT Covariance Matrix DF = 68 PRICE DOM WEIGHT PRICE 8482308.219 23.440 1265034.175 DOM 23.440 0.215 237.391 WEIGHT 1265034.175 237.391 628613.470 Simple Statistics Variable N Mean Std Dev Sum Minimum Maximum PRICE 69 6146 2912 424077 3291 15906 DOM 69 0.69565 0.46350 48.00000 0 1.00000 WEIGHT 69 3032 792.85148 209210 1760 4840 Pearson Correlation Coefficients / Prob > |R| under Ho: Rho=0 / N = 69 PRICE DOM WEIGHT PRICE 1.00000 0.01736 0.54784 0.0 0.8874 0.0001 DOM 0.01736 1.00000 0.64598 0.8874 0.0 0.0001 WEIGHT 0.54784 0.64598 1.00000 0.0001 0.0001 0.0 The SAS System 09:01 Tuesday, March 7, 2000 2 Model: MODEL1 Dependent Variable: PRICE Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 1 173907.29814 173907.29814 0.020 0.8874 Error 67 576623051.57 8606314.2026 C Total 68 576796958.87 Root MSE 2933.65202 R-square 0.0003 Dep Mean 6146.04348 Adj R-sq -0.0146 C.V. 47.73237 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 6070.142857 640.17535554 9.482 0.0001 DOM 1 109.107143 767.54328763 0.142 0.8874 The SAS System 09:01 Tuesday, March 7, 2000 3 Model: MODEL2 Dependent Variable: PRICE Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 2 285218332.43 142609166.21 32.280 0.0001 Error 66 291578626.44 4417857.9764 C Total 68 576796958.87 Root MSE 2101.87011 R-square 0.4945 Dep Mean 6146.04348 Adj R-sq 0.4792 C.V. 34.19875 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| INTERCEP 1 -1586.426209 1057.8106954 -1.500 0.1385 DOM 1 -3628.967445 720.40357812 -5.037 0.0001 WEIGHT 1 3.382873 0.42114853 8.032 0.0001 Covariance of Estimates COVB INTERCEP DOM WEIGHT INTERCEP 1118963.4673 233215.42132 -401.4385617 DOM 233215.42132 518981.31536 -195.9895187 WEIGHT -401.4385617 -195.9895187 0.1773660803 The SAS System 09:01 Tuesday, March 7, 2000 4 Model: MODEL1 NOTE: No intercept in model. R-square is redefined. Dependent Variable: PRICE2 Analysis of Variance Sum of Mean Source DF Squares Square F Value Prob>F Model 2 285218332.41 142609166.2 32.769 0.0001 Error 67 291578626.59 4351919.7999 U Total 69 576796959 Root MSE 2086.12555 R-square 0.4945 Dep Mean 0.04348 Adj R-sq 0.4794 C.V. 4798088.7592 Parameter Estimates Parameter Standard T for H0: Variable DF Estimate Error Parameter=0 Prob > |T| DOM2 1 -3628.967442 715.00722061 -5.075 0.0001 WEIGHT2 1 3.382873 0.41799381 8.093 0.0001 Covariance of Estimates COVB DOM2 WEIGHT2 DOM2 511235.32553 -193.0643018 WEIGHT2 -193.0643018 0.1747188251