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...correct in assuming that the output below essentially translates to "Males have a mean time that is significantly lower than Females"? Is this the correct way to interpret the fact that the coefficient is negative? Assume the variale sex is treated as a factor with Female =0 and Male=1. survmodel<-survreg(survobj~sex,data=data1, dist="weibull") survsum<-summary(survmodel) survsum Value Std. Error z p SexMale -0.47830 0.3745 -1.2770 2.02e-01 -- View this message in context: http://r.789695.n4.nabble.com/Correct-Inter...