QUESTION 4: The Reem Clinic Abu Dhabi (RCAD) would like to determine if additional phlebotomists need to be added to its outpatient laboratory. There is currently one phlebotomy collection station served by a phlebotomist, and the phlebotomy service time is 7.5 minutes for each patient, and assume patients arrive at the service according to a Poisson distribution with a mean of six per hour. 4.a Determine the arrival and service rates. 4.b What are the average numbers of patients in the waiting line and in the system? 4.c What are the average times that patients will spend in the waiting line and in the system? 4.d Evaluate if a multichannel queue system is more appropriate for this lab. The Reem Clinic Abu Dhabi (RCAD) would also like to determine if additional laboratory clerks are needed in its another outpatient laboratory, particularly because of the recent increases in Covid-19 test requests. Hours of operation are 7:00 a.m. to 5:00 p.m. Monday through Friday. All patients require registration in the hospital information system to allow for proper billing and test result entry. The laboratory is staffed with three laboratory clerks. The number of visits over the twenty-six months under study totalled 91,699. No appointments are made, and patients are assisted on a first-come. first-served basis. During that time period, the center was open for 576 days. Service time averages 5.2 minutes per patient regardless of the patient category. 4.e What is the system utilization? 4.f What is the average time for an arrival not immediately served? 4.g Suggest if more cierks are needed in this lab