$9-3$ Consider the data in Table $9-6.$ This table reports the number of a specific lab

test received for processing at an outpatient medical lab over a $10-$day period of

time. Based on machine capabilities and staffing, the service rate for the day shift

$(7$ AM$-3$ PM$)$ must be constant even though the arrival rate changes during this time

period. The system currently operates as a single channel single server system.

a$.$ What service rate do you recommend for the day shift $(7$ AM$-3$ PM$)?$ Remem$-$

ber that the service rate must be greater than the arrival rate. Use queuing

parameters to describe this system with different service rates.

b$.$ What are the implications of changing this system from a single server to

a multiple server system in which $S=2.$ Show the queuing theory param$-$

eters. How would management make this decision?

Table $9-6$ Data on Outpatient Medical Laboratory