Table 1: Patients Arrival Service and Departure Times by Ms. Celin Avg. time with nurse: 5:34 Avg. time with doctor: 20:13 Avg. waiting time (for nurse and doctor): 28:12 Table 2: Patients Arrival Service and Departure Times by Mr. Tao Avg. tme witn nurse: ::1 Avg. time with doctor: 20:30 Avg. waiting time (for nurse and doctor): 27:02.