Activity 1 Activity 2 Activity 3 Activity 4 Activity 5 Welcome a quest Do the hair Wash and condition the hair Ring up the bill Stress release massage The flowchart shows the service process at a barber shop: Operation 1: Greeting a guest and offer water/tea/coffee (12 minutes); Operation 2: Wash the guest's hair (18 minutes); Operation 3: Stress-relief massage (20 minutes); Operation 4: Do the hair (27 minutes); Operation 5: Present the bill and process payment (10 minutes). Each operation has a dedicated employee. Assume demand rate is very high (higher than the capacity of the process), but the employee in charge of operation 1 only admits customers at the rate of the bottleneck (those not admitted will just walk away). What is the throughout rate (guests per hour) of this process? Note: Round your final answer to 1 decimal place. Your