Section $2$

A large theme park is attempting to staff its entrance gates. Currently, the arrival rate is $=192$ customers per hour and each server has an average service time of $E[T]=225$ seconds. Our usual assumption holds where the interarrival and service times follow an exponential distribution.

Calculate the average service rate $($in hours to match $).$

a$.9$ customers per hour

b$.12$ customers per hour

c$.18\mathrm{.}5$ customers per hour

d$.16$ customers per hour