Abook44 on methodsformodelingsurvivaltimesdiscussedanexamplecomparingtimesof remission (inweeks)ofleukemiapatientstakingadrugorcontrol.Thedata,withcensored observationsindicatedbythe“+”sign,are:

Treatment: 6+, 6, 6, 6, 7, 9+, 10+, 10, 11+, 13, 16, 17+, 19+, 20+, 22, 23, 25+, 32+, 32+, 34+, 35+

Control: 1, 1, 2, 2, 3, 4, 4, 5, 5, 8, 8, 8, 8, 11, 11, 12, 12, 15, 17, 22, 23 The associateddatafileis Survival_Cox_Oakes at thebook’swebsite.Conductasignificance test ofidenticalsurvivaldistributions.Interpretthe P-value.Graphicallyportraythesample survivaldistributionsusingKaplan–Meiercurves,andestimatethemedianremissiontimesfor the twogroups.