LO D.4 Which of the following is not an assumption in a multipleserver queuing model?

a) Arrivals come from an infinite, or very large, population.

b) Arrivals are Poisson distributed.

c) Arrivals are treated on a first-in, first-out basis and do not balk or renege.

d) Service times follow the exponential distribution.

e) Servers each perform at their own individual speeds.