A telephone-order sales company must determine how many telephone operators are needed to staff the.

A telephone-order sales company must determine how many
telephone operators are needed to staff the phones during the 9-to-5 shift. It
is estimated that an average of 480 calls are received during this time period
and that the average call lasts for 6 minutes. There is no “queueing.” If a
customer calls and all operators are busy, this customer receives a busy signal
and must hang up. If the company wants to have at most 1 chance in 100 of a
caller receiving a busy signal, how many operators should be hired for the
9-to-5 shift? Base your answer on an appropriate simulation. Does it matter
whether the service times are exponentially distributed or gamma distributed?
Experiment to find out.