计量经济学 庞皓 第三版课后答案完整可编辑.docx

第二章 简单线性回归模型2.1①首先分析人均寿命与人均GDP 的数量关系，用 Eviews 分析：Dependent Variable: YMethod: Least SquaresDate: 12/27/14Time: 21:00Sample: 1 22Included observations: 22VariableCoefficientStd. Errort-StatisticProb.C56.647941889920.0000X10.1283600.0272424.7118340.0001R-squared0.526082Mean dependent var62.50000Adjusted R-squared0.502386S.D. dependent var10.08889S.E. of regression7.116881Akaike info criterion6.849324Sum squared resid1013.000Schwarz criterion6.948510Log likelihood-73.34257Hannan-Quinn criter.6.872689F-statistic22.20138Durbin-Watson stat0.629074Prob(F-statistic)0.000134有上可知，关系式为 y=56.64794+0.128360x1②关于人均寿命与成人识字率的关系，用 Eviews 分析如下：Dependent Variable: YMethod: Least SquaresDate: 11/26/14Time: 21:10Sample: 1 22Included observations: 22VariableCoefficientStd. Errort-StatisticProb.C38.794243983400.0000X20.3319710.0466567.1153080.0000R-squared0.716825Mean dependent var62.50000Adjusted R-squared0.702666S.D. dependent var10.08889S.E. of regression5.501306Akaike info criterion6.334356Sum squared resid605.2873Schwarz criterion6.433542Log likelihood-67.67792Hannan-Quinn criter.6.357721F-statistic50.62761Durbin-Watson stat1.846406Prob(F-statistic)0.000001由上可知，关系式为 y=38.79424+0.331971x2③关于人均寿命与一岁儿童疫苗接种率的关系，用Eviews 分析如下：Dependent Variable: YMethod: Least SquaresDate: 11/26/14Time: 21:14Sample: 1 22Included observations: 22VariableCoefficientStd. Errort-StatisticProb.C31.799566.5364344.8649710.0001X30.3872760.0802604.8252850.0001R-squared0.537929Mean dependent var62.50000Adjusted R-squared0.514825S.D. dependent var10.08889S.E. of regression7.027364Akaike info criterion6.824009Sum squared resid987.6770Schwarz criterion6.923194Log likelihood-73.06409Hannan-Quinn criter.6.847374F-statistic23.28338Durbin-Watson stat0.952555Prob(F-statistic)0.000103由上可知，关系式为 y=31.79956+0.387276x3（2）①关于人均寿命与人均 GDP 模型，由上可知，可决系数为 0.526082，说明所建模型整体上对样本数据拟合较好。对于回归系数的 t 检验：t（β1）=4.711834t0.025(20)=2.086，对斜率系数的显著性检验表明，人均 GDP 对人均寿命有显著影响。②关于人均寿命与成人识字率模型，由上可知，可决系数为 0.716825，说明所建模型整体上对样本数据拟合较好。对于