1. Project details are given below Activity Time Variance Preceding Activity A B D E 16 11 24 5 18 26 10 14 12 0.69 0.69 0.11 0 0.25 0.11 0.25 0.36 0.11 F D E D G H H 1 a. Develop a network diagram b. What is the project completion time? c. What is the probability that the project will be completed in 50 weeks or less? d. What is the probability that the project will be completed in more than 50 weeks? 16 B 3 2. Project details are given below Activity Time (weeks) Preceding Activity Crashing Potential Cost per week to crash (weeks) 3 S11000 A $3,000 first week. $4.000 others $6000 $1000 56000 E 1 S2000 D E F 24 5 18 26 2 1 3 Costs for the project are $ 12000 per week for as long as the project lasts. a. What is the project duration and costs? b. Crash the project by 4 weeks i.e., which activities should be crashed and by how many weeks? What will be the incremental cost/gain of crashing the project