Answer the question from the data given below

 

Activity A B D E F G H I J K Timeuse for each activity Predecessor (hours) A A B, C B, C D, E D, E H F, G G, I 8 12 6 8 a) Illustrate the process in a flow chart. b) Determine the flow time of the process. c) What are the critical activities (path)? 1 4 6 2,5 1 2 8 The Predecessor column indicates which activity or activities must be completed before the respective activity in the left column can begin. For instance, activity A must be finished before activity C can begin. Further, this indicates that the path will branch from two different activities (A and B). d) Identify the bottlenecks in the process. What is the process capacity? e) If the capacity in bottleneck (d) gets doubled, what is the new capacity? f) Determine early start time (EST), and the late start time (LST) for each activity in the process. g) Assume now that the time use for all activities on the second longest path is uncertain and normally distributed. Assume that all activities has a variance of 4 hours and are independent of each other. Given that the figures in the table above for each of these activities are interpreted as expected values, what is the probability that the total time for this path exceeds the answer in b)?