Question 18 (1 point) Activity 1 Activity 2 Activity 3 Activity 4 Activity 5 Welcome a quest Stress release Do the hair Wash and condition the hair Ring up the bill massage The flowchart shows the service process at a barber shop: Operation 1: Greeting a guest and offer water/tea/coffee (13 minutes); Operation 2: Wash the guest's hair (17 minutes); Operation 3: Stress-relief massage (19 minutes); Operation 4: Do the hair (26 minutes); Operation 5: Present the bill and process payment (7 minutes). Each operation has a dedicated employee. Assume the demand rate is very high (higher than the capacity of the process), but the employee at operation 1 only admits customers at the rate of the bottleneck (those not admitted will just walk away). What is the utilization of the employee at operation 1