《计量经济学综合实验》实验报告

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《计量经济学综合实验》实验报告2013-2014学年第一学期班级:姓名:学号:课程编码:0123100320课程类型:综合实训实验时间:第16周至第18周实验地点:实验目的和要求:熟悉eviews软件的基本功能,能运用eviews软件进行一元和多元模型的参数估计、统计检验和预测分析,能运用eviews软件进行异方差、自相关、多重共线性的检验和处理,并最终将操作结果进行分析。能熟悉运用eviews软件对时间序列进行单位根、协整和格兰杰因果关系检验。实验所用软件:eviews实验内容和结论:见第2页—第39页计量经济学综合实验实验一第二章第6题DependentVariable:YMethod:LeastSquaresDate:12/17/13Time:09:13Sample:19851998Includedobservations:14VariableCoefficientStd.Errort-StatisticProb.C12596.271244.56710.121010.0000GDP26.954154.1203006.5417920.0000R-squared0.781002Meandependentvar20168.57AdjustedR-squared0.762752S.D.dependentvar3512.487S.E.ofregression1710.865Akaikeinfocriterion17.85895Sumsquaredresid35124719Schwarzcriterion17.95024Loglikelihood-123.0126F-statistic42.79505Durbin-Watsonstat0.859998Prob(F-statistic)0.000028(1)ttteGDPY95.2627.12596(10.12)(6.54)78.02R(2)95.261是样本回归方程的斜率,它表示GDP每增加1亿元,货物运输量将增加26.95万吨,27.12596ˆ0是样本回归方程的截距,表示GDP不变价时的货物运输量。(3)78.02R,说明离差平方和的78%被样本回归直线解释,还有22%未被解释。因此,样本回归至西安对样本点的拟合优度是较高的。给出显著水平05.0,查自由度v=14-2=12的t分布表,得临界值18.2)12(025.0t,)12(12.10025.00tt,)12(54.6025.01tt,故回归系数均显著不为零,回归模型中英包含常数项,X对Y有显著影响。(4)2000年的国内生产总值为620亿元,货物运输量预测值为29307.84万吨。实验二第二章第7题X1DependentVariable:QMethod:LeastSquaresDate:12/17/13Time:10:57Sample:19781998Includedobservations:21VariableCoefficientStd.Errort-StatisticProb.C40772.471389.79529.337040.0000X10.0012200.0019090.6391940.5303R-squared0.021051Meandependentvar40996.12AdjustedR-squared-0.030473S.D.dependentvar6071.868S.E.ofregression6163.687Akaikeinfocriterion20.38113Sumsquaredresid7.22E+08Schwarzcriterion20.48061Loglikelihood-212.0019F-statistic0.408568Durbin-Watsonstat0.206201Prob(F-statistic)0.530328tQ=40772.47+0.001tX1+teX2DependentVariable:QMethod:LeastSquaresDate:12/17/13Time:10:58Sample:19781998Includedobservations:21VariableCoefficientStd.Errort-StatisticProb.C26925.65915.865729.399120.0000X25.9125340.35642316.588510.0000R-squared0.935413Meandependentvar40996.12AdjustedR-squared0.932014S.D.dependentvar6071.868S.E.ofregression1583.185Akaikeinfocriterion17.66266Sumsquaredresid47623035Schwarzcriterion17.76214Loglikelihood-183.4579F-statistic275.1787Durbin-Watsonstat1.264400Prob(F-statistic)0.000000tQ=26925.65+5.91tX2+teX3DependentVariable:QMethod:LeastSquaresDate:12/17/13Time:10:58Sample:19781998Includedobservations:21VariableCoefficientStd.Errort-StatisticProb.C-49865.3912638.40-3.9455450.0009X31.9487000.2706347.2004980.0000R-squared0.731817Meandependentvar40996.12AdjustedR-squared0.717702S.D.dependentvar6071.868S.E.ofregression3226.087Akaikeinfocriterion19.08632Sumsquaredresid1.98E+08Schwarzcriterion19.18580Loglikelihood-198.4064F-statistic51.84718Durbin-Watsonstat0.304603Prob(F-statistic)0.000001tQ=-49865.39+1.95tX3+te(1)ttteXQ110ˆˆtQ=40772.47+0.001tX1+tettteXQ210ˆˆtQ=26925.65+5.91tX2+tettteXQ310ˆˆtQ=-49865.39+1.95tX3+te(2)=0.001为样本回归方程的斜率,表示边际农业机械总动力,说明农业机械总动力每增加1万千瓦,粮食产量增加1万吨。=40072.47是截距,表示不受农业机械总动力影响的粮食产量。=0.02,说明总离差平方和的2%被样本回归直线解释,有98%未被解释,因此样本回归直线对样本点的拟合优度是很低的。给出的显著水平=0.05,查自由度v=21-2=19的t分布表,得临界值09.2)19(025.0t,34.290t)19(025.0t,64.00t)19(025.0t,=5.91为样本回归方程的斜率,表示边际化肥施用量,说明化肥使用量每增加1万吨,粮食产量增加1万吨。=26925.65是截距,表示不受化肥使用量影响的粮食产量。=0.94,说明总离差平方和的94%被样本回归直线解释,有6%未被解释,因此样本回归直线对样本点的拟合优度是很高的。给出的显著水平=0.05,查自由度v=21-2=19的t分布表,得临界值09.2)19(025.0t,0t29.40)19(025.0t,=16.6,故回归系数均不为零,回归模型中应包含常数项,X对Y有显著影响。=1.95为样本回归方程的斜率,表示边际土地灌溉面积,说明土地灌溉面积每增加1千公顷,粮食产量增加1万吨。=-49865.39是截距,表示不受土地灌溉面积影响的粮食产量。=0.73,说明总离差平方和的73%被样本回归直线解释,有27%未被解释,因此样本回归直线对样本点的拟合优度是较高的。给出显著性水平=0.05,查自由度=21-2=19的t分布表,得临界值=2.09,=-3.95,=7.2,故回归系数包含零,回归模型中不应包含常数项,X对Y有无显著影响。(3)根据分析,X2得拟合优度最高,模型最好,所以选择X2得预测值。tQ=26925.65+5.91tX2+te54.52349ˆ2000Q实验三P85第3题DependentVariable:YMethod:LeastSquaresDate:12/19/13Time:09:10Sample:118Includedobservations:18VariableCoefficientStd.Errort-StatisticProb.C-0.97556830.32236-0.0321730.9748X1104.31466.40913616.275920.0000X20.4021900.1163483.4567760.0035R-squared0.979727Meandependentvar755.1500AdjustedR-squared0.977023S.D.dependentvar258.6859S.E.ofregression39.21162Akaikeinfocriterion10.32684Sumsquaredresid23063.27Schwarzcriterion10.47523Loglikelihood-89.94152F-statistic362.4430Durbin-Watsonstat2.561395Prob(F-statistic)0.000000(1)2140.032.10498.0ˆXXY(2)提出检验的原假设为2,1,00iHi。给出显著水平05.0,查自由度v=18-2=16的t分布表,得临界值13.2)15(025.0t。28.161t)15(025.0t,所以否定0H,1显著不等于零,即可以认为受教育年限对购买书籍及课外读物支出有显著影响。46.32t)15(025.0t,所以否定0H,2显著不等于零,即可以家庭月可支配收入对购买书籍及课外读物支出有显著影响。(3)9797.012TSSRSSTSSESSR9770.0)1/()1/(12nTSSknRSSR2R=0.9797,表示Y中的变异性能被估计的回归方程解释的部分越多,估计的回归方程对样本观测值就拟合的越好。同样,2R=0.9770,很接近1,表示模型拟合度很好。(4)把1X=10,2X=480代入2140.032.10498.0ˆXXY22.1234480*40.010*32.10498.0ˆ2000Y实验四P86第6题DependentVariable:YMethod:LeastSquaresDate:12/19/13Time:10:14Sample:19551984Includedobservations:30VariableCoefficientStd.Errort-StatisticProb.C0.2089324.3722180.0477860.9623X11.0814070.2341394.6186490.0001X23.6465651.6998492.1452290.0414X30.0042120.0116640.3610710.7210R-squared0.552290Meandependentvar22.13467AdjustedR-squared0.500632S.D.dependentvar14.47115S.E.ofregression10.22618Akaikeinfocriterion7.611345Sumsquaredresid2718

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