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計量經(jīng)濟學(xué)期末考試及答案(2)-在線瀏覽

2025-02-24 01:14本頁面
  

【正文】 ent Std. Error tStatistic Prob. C MI EA Rsquared Mean dependent var Adjusted Rsquared . dependent var . of regression Akaike info criterion Sum squared resid Schwarz criterion Log likelihood HannanQuinn criter. Fstatistic DurbinWatson stat Prob(Fstatistic) 要求 :( 1)根據(jù)輸出結(jié)果寫出計量經(jīng)濟學(xué)模型;( 3 分) ( 2)寫出模型的殘差平方和與調(diào)整的可決系數(shù);( 2 分) ( 3)檢驗戶主受教育年限對家庭書刊年消費額是否有顯著影響;( 2 分) ( 4)檢驗方程的整體顯著性;( 2 分) ( 5)分析所估計模型的經(jīng)濟意義和作用。 問 ( 1)這一結(jié)果表明模型可能存在什么問題?( 2 分)。接 下來,該研究者利用EViews 軟件進行廣義差分法估計參數(shù),得以下結(jié)果: Dependent Variable: Y Method: Least Squares Date: 12/24/09 Time: 22:45 Sample (adjusted): 1987 2022 Included observations: 17 after adjustments Convergence achieved after 22 iterations Variable Coefficient Std. Error tStatistic Prob. C X AR(1) AR(2) BreuschGodfrey Serial Correlation LM Test: Fstatistic Prob. F(2,15) Obs*Rsquared Prob. ChiSquare(2) Dependent Variable: RESID Variable Coefficient Std. Error tStatistic Prob. C X RESID(1) RESID(2) Rsquared Mean dependent var Adjusted Rsquared . dependent var . of regression Akaike info criterion Sum squared resid 1456712. Schwarz criterion Log likelihood HannanQuinn criter. Fstatistic DurbinWatson stat Prob(Fstatistic) ( 3)根據(jù)這一結(jié)果,寫出最終的回歸方程( 3 分)。要求:對模型進行識別。以下是輸出結(jié)果: Augmented DickeyFuller test statistic Test critical values: 1% level 5% level 10% level *MacKinnon (1996) onesided pvalues. Warning: Probabilities and critical values calculated for 20 observations and may not be accurate for a sample size of 19 Augmented DickeyFuller Test Equation Dependent Variable: D(E) Method: Least Squares Date: 12/24/09 Time: 23:15 Sample (adjusted): 1972 1990
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