Dry and wet seasons alternate, with each dry season lasting an exponential time with rate and
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Dry and wet seasons alternate, with each dry season lasting an exponential time with rate λ and each wet season an exponential time with rate μ. The lengths of dry and wet seasons are all independent. In addition, suppose that people arrive to a service facility according to a Poisson process with rate v. Those that arrive during a dry season are allowed to enter; those that arrive during a wet season are lost. Let Nl (t) denote the number of lost customers by time t .
(a) Find the proportion of time that we are in a wet season.
(b) Is {Nl (t ), t ≥ 0} a (possibly delayed) renewal process?
(c) Find limt→∞
Nl (t)
t .
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