做了一个数学模型,建立模型后的相关系数为0.81,大家说说模型可以用吗?
用EVIEW作得回归,结果如下
Variable Coefficient Std. Error t-Statistic Prob.
C 3.593780 0.069520 51.69414 0.0000
X -0.009511 0.000360 -26.43627 0.0000
R-squared 0.817517 Mean dependent var 2.362824
Adjusted R-squared 0.816348 S.D. dependent var 1.514160
S.E. of regression 0.648888 Akaike info criterion 1.985465
Sum squared resid 65.68471 Schwarz criterion 2.024232
Log likelihood -154.8517 F-statistic 698.8763
Durbin-Watson stat 1.222011 Prob(F-statistic) 0.000000