At a hotel, the following activities are performed for every guest when they request to check out at the front desk. Activity 1: The staff member at the front desk inquires about quality of products and services, and then collect the room key from the guest. This takes 1.5 minutes. Activity 2: Another staff member will go to the guest's room to quickly check if there is any damages in the room and if the guest has forgotten anything in the room. This takes 2.5 minutes. The two activities can be performed in parallel. The checkout process is complete for a guest after both staff members sign off on the request. The flowchart show below demonstrates the process. Activity 1: Inquires about quality of service, and collect room key Activity 2: Check the room What is the capacity of this checkout process in guests/hour? Note: Round to 2 decimal place if your answer is not a whole number. Your