Homework 15. Due Friday Nov. 6.
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Create an Analysis of Deviance table for 
(i) Logistic Regression, and (ii) Probit Regression 
using all of the regressors in the kyphosis data 
PLUS Age^2.  You can find the data at
http://www.math.umd.edu/~evs/s798c/Data   web-page, either as a
gzipped file
http://www.math.umd.edu/~evs/s798c/Data/kyphosis.gz
or as an ordinary text file
http://www.math.umd.edu/~evs/s798c/Data/kyph2.dat
 
These data are discussed in a handout, which can be found under  
http://www.math.umd.edu/~evs/s770/SASlogs/SASlog3.txt .

For each of your best fitted models (one using logit and 
one probit), discuss the goodness of fit by interpreting 
the cross-tabulation of the Kyphosis response versus the 
quantity   trunc(5*glmfit$fit)/5 .