A B C D E F Previous event 1 1 A B B A Optimistic Most time frequent time 9 12 5 8 10 7 18 9 23 a a Pessimistic Description of activities time 15 Choosing the medical and administrative team 13 Building a questionnaire for marketing study, positioning, data collection and analysis Device selection Preparing a plan for the internal arrangement of operating rooms and the rest of the hospital facilities Contracting to purchase needs Interview applicants to work on the project 12 17 43 15 D E F G H I J K B B A C D A E,G,H H,I,J 7 18 30 35 12 3 7 9 23 35 39 15 3 9 Preparing a plan for the internal arrangement of operating rooms and the rest of the hospital facilities 43 Contracting to purchase needs 15 Interview applicants to work on the project 40 Completing the purchase and shipment of devices 49 hospital building Information system 18 development 9 Installing devices 11 Training of nurses and support staff 17 Required: 1. Draw a PERT grid 2. Determine the early and late time to start activities 3. Determining the early and late time for the completion of activities 4. Determine the critical path 5. What is the probability that the project will be completed in 73 weeks 6. What is the probability that the project will be completed in 70 weeks