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計量經(jīng)濟學(xué)第三版課后習(xí)題答案解析-文庫吧

2025-06-03 19:13 本頁面


【正文】 tStatisticProb.X2X3X4CRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared residSchwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)②得到模型得:Y=+  X4③對模型進行檢驗:1) ,說明模型對樣本擬合較好2) F檢驗,F(xiàn)=F(3,27)=,回歸方程顯著。3)t檢驗,,,均大于t(27)=,所以這些系數(shù)都是顯著的。④依據(jù):1) 可決系數(shù)越大,說明擬合程度越好2) F的值與臨界值比較,若大于臨界值,則否定原假設(shè),回歸方程是顯著的;若小于臨界值,則接受原假設(shè),回歸方程不顯著。3) t的值與臨界值比較,若大于臨界值,則否定原假設(shè),系數(shù)都是顯著的;若小于臨界值,則接受原假設(shè),系數(shù)不顯著。(2)經(jīng)濟意義:人均GDP增加1萬元,城鎮(zhèn)人口比重增加1個百分點,交通工具消費價格指數(shù)每上升1。(3)用EViews分析得:Dependent Variable: YMethod: Least SquaresDate: 12/23/15 Time: 21:09Sample: 1 31Included observations: 31VariableCoefficientStd. ErrortStatisticProb.X2LNX3LNX4CRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared residSchwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)模型方程為:Y= LNX4+,擬合程度得到了提高,可這樣改進。(1)對出口貨物總額計量經(jīng)濟模型,用Eviews分析結(jié)果如下::Dependent Variable: YMethod: Least SquaresDate: 12/24/15 Time: 08:23Sample: 1994 2011Included observations: 18VariableCoefficientStd. ErrortStatisticProb.X2X3CRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared resid8007316.Schwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)①由上可知,模型為:Y = + ②對模型進行檢驗: 1),說明模型對樣本擬合較好2)F檢驗,F(xiàn)=F(2,15)=,回歸方程顯著3)t檢驗,大于t(15)=,系數(shù)是顯著的,小于t(15)=,說明此系數(shù)是不顯著的。 (2)對于對數(shù)模型,用Eviews分析結(jié)果如下:Dependent Variable: LNYMethod: Least SquaresDate: 12/24/15 Time: 08:47Sample: 1994 2011Included observations: 18VariableCoefficientStd. ErrortStatisticProb.LNX2LNX3CRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared residSchwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)①由上可知,模型為:LNY=+ LNX2+ LNX3②對模型進行檢驗:1),說明模型對樣本擬合較好。2)F檢驗,F(xiàn)= F(2,15)=,回歸方程顯著。3)t檢驗,,均大于t(15)=,所以這些系數(shù)都是顯著的。(3)①(1)式中的經(jīng)濟意義:工業(yè)增加1億元,人民幣匯率增加1。②(2)式中的經(jīng)濟意義:工業(yè)增加額每增加1%,%,人民幣匯率每增加1%,%(1)對家庭書刊消費對家庭月平均收入和戶主受教育年數(shù)計量模型,由Eviews分析結(jié)果如下:Dependent Variable: YMethod: Least SquaresDate: 12/24/15 Time: 09:03Sample: 1 18Included observations: 18VariableCoefficientStd. ErrortStatisticProb.XTCRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared residSchwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)①模型為:Y = + ②對模型進行檢驗:1),說明模型對樣本擬合較好。2)F檢驗,F(xiàn)= F(2,15)=,回歸方程顯著。3)t檢驗,,均大于t(15)=,所以這些系數(shù)都是顯著的。③經(jīng)濟意義:家庭月平均收入增加1元,戶主受教育年數(shù)增加1年。(2)用Eviews分析:①Dependent Variable: YMethod: Least SquaresDate: 12/24/15 Time: 09:18Sample: 1 18Included observations: 18VariableCoefficientStd. ErrortStatisticProb.TCRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared residSchwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)②Dependent Variable: XMethod: Least SquaresDate: 12/24/15 Time: 09:34Sample: 1 18Included observations: 18VariableCoefficientStd. ErrortStatisticProb.TCRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared resid4290746.Schwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)以上分別是y與T,X與T的一元回歸模型分別是:Y = X = + (3)對殘差進行模型分析,用Eviews分析結(jié)果如下:Dependent Variable: E1Method: Least SquaresDate: 12/24/15 Time: 09:39Sample: 1 18Included observations: 18VariableCoefficientStd. ErrortStatisticProb.E2CRsquaredMean dependent varAdjusted Rsquared. dependent var. of regressionAkaike info criterionSum squared residSchwarz criterionLog likelihoodHannanQuinn criter.FstatisticDurbinWatson statProb(Fstatistic)模型為:E1 = + 參數(shù):,(3)由上可知,β2與α2的系數(shù)是一樣的?;貧w系數(shù)與被解釋變量的殘差系數(shù)是一樣的,它們的變化規(guī)律是一致的。(1)預(yù)期的符號是X1,X2,X3,X4,X5的符號為正,X6的符號為負(2)根據(jù)Eviews分析得到數(shù)據(jù)如下:Dependent Variable: YMethod: Least Square
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