White Heteroskedasticity Test:
F-statistic 8.912044 Probability 0.002616
Obs*R-squared 16.36750 Probability 0.059593
Test Equation:
Dependent Variable: RESID^2
Method: Least Squares
Date: 11/25/12 Time: 00:43
Sample: 1993 2010
Included observations: 18
Variable Coefficient Std. Error t-Statistic Prob.
C 144495.8 38727.61 3.731079 0.0058
X2 64.85967 55.20750 1.174834 0.2738
X2^2 -0.024976 0.022482 -1.110940 0.2989
X4 -9287.138 1833.979 -5.063927 0.0010
X4^2 124.2460 27.24556 4.560228 0.0018
X7 -0.176495 0.654637 -0.269608 0.7943
X7^2 -1.96E-06 5.52E-06 -0.354931 0.7318
X8 3.897892 5.645367 0.690459 0.5094
X8^2 -0.000343 0.000783 -0.437672 0.6732
D2 -8107.922 5138.191 -1.577972 0.1532
R-squared 0.909306 Mean dependent var 1859.978
Adjusted R-squared 0.807275 S.D. dependent var 2775.859
S.E. of regression 1218.616 Akaike info criterion 17.34900
Sum squared resid 11880197 Schwarz criterion 17.84365
Log likelihood -146.1410 F-statistic 8.912044
Durbin-Watson stat 2.750950 Prob(F-statistic) 0.002616
回归结果为这个 存在异方差吗 ?弱爆了的本科生求助!


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