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1. PERT: Please calculate the probability and the schedule based on the PERT method Most Likely Estimate tm (week) 0 2 Activity Start A B
1. PERT: Please calculate the probability and the schedule based on the PERT method Most Likely Estimate tm (week) 0 2 Activity Start A B C D E F a. G H I J K L M N End Description Excavate Lay the foundation Put up the rough wall Put up the roof Install the exterior plumbing Install the interior plumbing Put up the exterior siding Do the exterior painting Do the electrical work Put up the wallboard Install the flooring Do the interior painting Install the exterior fixtures Install the interior fixtures Immediate Predecessors A B C C E D E, G C F, I J J H K, L M,N Optimistic Estimate ta (week) 0 1 2 6 4 1 4 5 5 3 3 4 1 1 5 0 3.5 9 5.5 4.5 4 6.5 8 7.5 9 4 5.5 2 5.5 0 Pessimistic Estimate tb (week) 0 3 8 18 10 5 10 11 17 9 9 4 7 3 9 0 Draw a network diagram, calculate the expected duration and variance of each activity, show the critical path b. What is the probability to complete the project by 40 weeks? C. What is the probable project duration with 61.03% expectation?
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