Use the WCGS data set to fit the regression model presented in Table 5.18. Perform the Hosmer–Lemeshow goodness of fit test for the following number of groups: 10, 15, 20, and 25. Comment on the...

Use the WCGS data set to fit the regression model presented in Table 5.18. Perform the Hosmer–Lemeshow goodness of fit test for the following number of groups: 10, 15, 20, and 25. Comment on the differences. The data set is available at http://www.biostat.ucsf.edu/vgsm.