1. For the network shown here, calculate the following: a. Mean duration () b. Variance (2) c. Standard Deviation () d. Probability that the network can be completed in 50 days or less. 2. (Solver) Given the network below: a. Draw and submit the AOA network b. What is the critical path? c. What is the duration of the network? d. What is the normal (without crashing) cost? e. Using Excel Solver, what is the minimum duration? f. What is the new price? Task A B C D E F Activity 1-2 2-3 2-4 4-3 3-5 5-6 Pred A A B C D, E Duration 10 8 12 0 18 16 Norm t 3 4 5 6 7 3 Budget 300 400 350 0 405 450 Norm $ 50 100 200 250 400 300 Actual Cost 250 450 380 0 400 ------- Crash t1 2 2 3 4 4 2 Crash $ 150 150 300 350 600 450 % Complete 100.00 100.00 100.00 70.00 0.00 1 Page 2 of 2