Please note that the filled in answers have been verified as
Please note that the filled in answers have been verified as being correct. Here is the problem: Refer to the ANOVA table for this regression. Source Regression Residual d.f ,192,019 20 1,602,669 45 2,794,688 65 MS 59,601 35,615 Total (a) State the degrees of freedom for the F test for overall significance. The degrees of freedom for regression are 20 and for error 45 (b) Use Appendix F to look up the critical value of F for -05 (Round your answer to 2 decimal places.) (c-1) Calculate the F statistic. (Round your answer to 4 decimal places.) F statistic (c-2) The overall regression is significant. No Yes
Solution
Answer for B
F(0.05,20,45)=1.81 from F table
Answer for C)
F STATISTIC= MS of Regression/ MS of Residuals=596/356=1
6741
Answer for D)
R squared = SS for regressors /Total SS=11.92/27.94=0.4266
R squared adjusted= (1-(1-R^2)*(n-1)/(n-p-1))=1-(MSE/MST)=
1-(596/952)=1-0.6260=0.3840
