Ron;s Electronic Corp retains a service crew to rpair machine breakdowns that can occur on average; (Poisson) = 3 per 8 hour workday (Aprox. Poisson in nature.).The crew can service an average of (mu) = 8 machines per workday, with a repair time distribution that resembles the exponential distribution.
a. What is the untilization rate of this service system?
b. What is the average downtime for a broken machine?
c. How many machines are waiting for service at any given time?