Suppose that {N(t), t ≥ 0} is a Poisson process with rate λ > 0 and that S is a random variable having a uniform distribution on the interval [0,2].
(a) Obtain the moment-generating function of the random variable N{t + S). Indication. If X has a Poisson distribution with parameter a, then Mx(t) = exp{α(et - 1)}.
(b) Calculate the mean and the variance of N{t + S).