Survival Analysis

2. From Hosmer, Lemeshow, and May: Listed below are values of survival time in years for 6 males and 6 females from the WHAS100 study. Right-censored times are denoted by a "+" as a superscript. Males: 1.2, 3.4, 5.0+, 5.1, 6.1, 7.1 Females: 0.4, 1.2, 4.3, 4.9, 5.0, 5.1+ Using these data, compute the following by hand (and verify hand calculations when possible with a software package): (a) The Kaplan-Meier estimate of the survival function for each gender. (b) Pointwise 95% CIs for the survival functions estimated in the previous part