3. Indah Corp has undertaken a project that involves eleven main activities. For easy reference, the activities are names A to L. The management team has identified the immediate predecessor activity/activities and estimated times for each activity. The information summary is given in the table below. Activity Immediate Activity Time (weeks) Optimistic Most likely Pessimistic 13 18 10 6 14 NWORDANONDO ImTOMOOD a) Draw a network diagram to represent the project. b) Compute the expected times and variance for each activity time. What is the expected completion time for project and the associated critical path? d) Calculate the variance in the expected completion time for the project. e) Find the probability that the project will be completed within 43 weeks. f) What will happen to the project duration and the critical path if activity D is delayed by 2 weeks? 4. (MT /Dec 2014) The flow of activities involved in a financial reporting and analysis project is shown below. . H. Start B Finish The expected duration, t, in weeks and the standard deviation of the duration of each activity are provided in the table below Activity A C D F G I 4 8 6 6 4 3 1/9 16/9 16/9 16/9 25/9 16/9 Determine the expected completion time for the project and the critical path activities. How long can the activities be delayed without affecting the current critical path? Compute the project variance. d) What is the probability that the project will be completed within 6 months