Activity Optimistic time Realistic time Pessin (week 25 64 - Aastal town on the Mediterranean has designed a contract to build The project team which has been assigned has developed a schedule based approach. The information is given below: Immediate predecessor (weeks) (weeks) A 17 20 B 43 62 75 D A 17 27 E D 25 35 F E.B 18 20 28 G D 20 31 G 19 22 26 G 14 17 21 K G 20 37 L CFH 12 14 M 18 25 41 55 68 15 1 Required: 1. Develop the network scheme for this project showing the earliest finish, lat and the slack for each activity marks 2. What is the critical path and its length? marks) 3. What is the probability of completing the project in 120 weeks? 4. Would you be prepared to sign a contract saying the project can be complet years? Support your answer a C