Question

1 test for multicollinearity and discuss possible solutions. Regression output confidence interval variables coefficients std. error...

  1. 1 test for multicollinearity and discuss possible solutions.
  2. Regression output confidence interval
    variables coefficients std. error    t (df=148) p-value 95% lower 95% upper VIF
    Intercept 0.6507
    X1 0.00000662 0.00000074 8.910 1.73E-15 0.00000515 0.00000809 3.860
    X2 0.00041330 0.00023401 1.766 .0794 -0.00004914 0.00087574 1.132
    X3 -0.0006 0.00016086 -3.628 .0004 -0.0009 -0.0003 2.930
    X4 -0.00030420 0.00002572 -11.829 3.82E-23 -0.00035502 -0.00025338 2.654
    X5 0.0550 0.0346 1.587 .1147 -0.0135 0.1234 1.272
    X6 -0.0006 0.00040393 -1.493 .1375 -0.0014 0.0002 3.402
    2.542
    mean VIF

Homework Answers

Answer #1

Result shows that the independent variable x1,x3 and x4 are significant at 0.05 level of significance because their corresponding p values are less than 0.05 level

Result shows that the independent variable x2,x5 and x6 are insignificant at 0.05 level of significance because their corresponding p values are more than 0.05 level

None of the VIF values are greater than value 10, so there is no signficant multicollinearity which can cause any error in the result.

Therefore, only x1,x3 and x4 are significant independent variables and there is no multicollinearity in the model

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