Question: Consider the data set from Section 1.10 of Klein & Moeschberger's text on the times to death or relapse after bone marrow transplant (BMT) in
Consider the data set from Section 1.10 of Klein & Moeschberger's text on the times to death or relapse after bone marrow transplant (BMT) in patients with leukemia. These data are available in the data frame hodg in the KMsurv library in R. The time variable of interest is named time in hodg data set, which measures the time (in days) to death or relapse of leukemia. The variable delta in the data set is an indicator for death or relapse (delta = 1 indicates death or relapse). Additional variables in the data frame measure other characteristics of the patients and their treatment. Conduct formal hypothesis tests to address each of the following: A prior study has shown that times to death/relapse after BMT follow a distribution with cumulative hazard function H left parenthesis x right parenthesis equals fraction numerator x over denominator x plus 50 end fraction comma space x greater or equal than 0 . Test the null hypothesis that the distribution of times to death in the population from which this sample came corresponds to the given cumulative hazard function. (Hint: Even though this won't test a "named" distribution, the one-sample testing process works the same as in
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