Use the likelihood ratio test with the 1981 data to test the null hypothesis that the parameter γ in the Weibull model is equal to 1. (Refit the nonlinear model you obtain from the Weibull model by...

Use the likelihood ratio test with the 1981 data to test the null hypothesis that the parameter γ in the Weibull model is equal to 1. (Refit the nonlinear model you obtain from the Weibull model by setting γ = 1. Test the increase in residual sums of squares of this “reduced” model over the “full” model against the residual mean square from the “full” model using an F-test.) Is the result of this test consistent with the conclusion you reach if you use the Wald test?