13 Time: 20:29РSample: 1 31РIncluded observations: 31РCollinear test regressors dropped from specificationРCoefficientРStd. ErrorРt-StatisticРProb. РCР17.63991Р5.922594Р2.978410Р0.0059РWGTР-256.0052Р728.8280Р-0.351256Р0.7280РWGT^2Р8.261926Р23.57155Р0.350504Р0.7286РR-squaredР0.014830Р Mean dependent varР16.38664РAdjusted R-squaredР-0.055539Р S.D. dependent varР29.69485РS.E. of regressionР30.50832Р Akaike info criterionР9.765641РSum squared residР26061.21Р Schwarz criterionР9.904414РLog likelihoodР-148.3674Р Hannan-Quinn criter.Р9.810878РF-statisticР0.210748Р Durbin-Watson statР2.081320РProb(F-statistic)Р0.811251Р从上表可知nR==0.459736<χ(5)=11.0705,证明模型中的异方差已经被消除了。Р异方差修正后的模型为Р= -7074.873+0.788277X1*+0.235806 X2*Р389.4944 0.013692 0.000968Рt = (-18.16425) ( 57.57099) ( 243.6786)
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