3. The data for this problem come from a smoking cession study. Smokers were given hypnosis therapy to help them quit smoking. We call the subjects every morning to determine if they have had a cigarette. For 31 subjects. they answer the phone every day,r until they report a relapse. Let y] . . . . . y" be the relapse times for these subjmts. For or subjects, they stop emswering the phone and we never know their relapse time. For these censored subjects, let yn\