number 12 a,b,c.

me chown. Develop the project network Activity A B C Immediate Predecessor D E F G H I - A.B AB B C D DF E.G.H Assume that the activity time estimates (in days) for the swim project in Problem 11 are as follows: ways) for the swimming pool construction 12. Activity Optimistic Pessimistie Most Probable ooooNaoatu a. What are the critical activities? What is the expected time to complete the project? c. Based only on the critical path, what is the estimated probability that the project can be completed in 25 or fewer days? 13. Suppose that the following estimates of activity times (in weeks) were provided for the network shown in Problem 6: Optimistic Most Probable Pessimistic 6.0 3.5 LF test 5.0 ativity