5.1 For the horseshoe crab data (available at www.stat.ufl.edu/∼aa/

intro-cda/appendix.html), fit a model using weight and width as predictors.

a. Report the prediction equation.

b. Conduct a likelihood-ratio test of H0: β1 = β2 = 0. Interpret.

c. Conduct separate likelihood-ratio tests for the partial effects of each variable.

Why does neither test show evidence of an effect when the test in (b)

shows very strong evidence?