The hull workshop in a shipyard has decided to make a contract for the construction of a 5000 Gross Tonnage bulk ship. The manager has been very concerned with the amount of time to complete several jobs because some of her workers are not experienced in hull building. A list of activities and their optimistic completion time, the most likely time and the pessimistic completion time (all in weeks) for the construction of the ship are given in the following table. ACTIVITY Immediate Pred. A B D E B,D F A,E G A,E H F I G J K HI X 3 2 1 6 2 6 1 3 10 14 2 Times m V 6 8 4 4 2 3 7 8 4 6 10 14 2 4 6 9 11 12 16 20 8 10 Assignment: 1. Determine the expected time and variance for each activity (Accept the nearest whole number for the activities expected times) 2. Determine the total project completion time and the critical path for the project 3. Determine ES, EF, LS, LF and slack for each activity 4. What is the probability that hull workshop will finish the project in 40 weeks or less