Compare The Crude And Adjusted Analyses Of The Relationship Of Log10co To Recidivism 1540049

Compare the crude and adjusted analyses of the relationship of log10CO to recidivism in Problems 14.8 and 14.9.

Problem 14.8

Compare survival curves of the two groups, using hypothesis-testing methods, and report a p-value. A Cox proportional-hazards model was fit to these data to assess the relationship between age, sex, number of cigarettes smoked, and log10CO concentration, when considered simultaneously, on the ability to remain abstinent from smoking. The results are given in Table 14.32.

Problem 14.9

Assess the significance of each of the variables.