Which of the Following Is Not an Assumption of the Waiting

Multiple Choice

Which of the following is not an assumption of the waiting line models presented in the textbook?

A) the customers are patient
B) customers come from an infinite population
C) customer arrival rate is described by a Poisson distribution
D) service times are described by an exponential distribution
E) in a multi-phase system, a server can serve more than one customer at a time