In: Statistics and Probability
Let T > 0 be a continuous random variable with cumulative hazard function H(·).
Show that H(T)∼Exp(1),where Exp(λ) in general denotes the exponential distribution with rate parameter λ.
Hints:
(a) You can use the following fact without proof: For any continuous random variable T with cumulative distribution function F(·), F(T) ∼ Unif(0,1). Hence S(T) ∼ Unif(0,1).
(b) Use the relationship between S(t) and H(t) to derive that
Pr(H(T) > x)= e−x.