Use the network diagram provided below to answer the following question: ES EF LS LF start end 19 10 If activity E is delayed by 5 weeks (and all other activities occur at their normal duration), the project duration will a) not change Ob) increase by 1 week c) increase by 4 weeks a6 04 30 If activity E is delayed by 5 weeks (and all other activities occur at their normal duration), the project duration will a) not change Ob) increase by 1 week c) increase by 4 weeks d) increase by 3 weeks e) increase by 2 weeks Use the information below to answer the following question: The project manager is using PERT to determine what the probability is of completing the following project for various durations. Durations are in days. Optimistic Most Likely Pessimistic B D Task (a) (b) (m) A 8 8 8 E B 4 6 20 A C 18 24 42 D 6 8 28 C E 12 18 30 What is the probability of completing the project in 50 days or less? a) 2.28% b) 27.43% Oc) 78.81% d) 15.87% e) 99.94%