(30) QUESTION 1 Rustic Deck Project Activity Immediate Predecessor Optimistic Most Likely Pessimistic 8 A B 7 10 8 11 7 7 10 10 14 D E C 8 9 13 13 17 11 9 9 7 10 F D 8 4 5 G H F B 6 6 7 1 9 H E,G, END 1.1. Determine the expected completion time and variance for each activity. 1.2. Construct an AON network for the activities of this contract. 1.3. Determine the critical path for the project by determining the slack of each activity. (9) (11)