Lamont Henri needs to plan and manage a local construction project. The following table describes the relationships between the activities that need to be completed:

If using Crystal Ball, assume that the actual duration of each activity follows a BetaPert distribution, with the three time estimates shown for that activity. Otherwise, assume that each activity time is normally distributed with expected time and standard deviation computed as shown in equations 7-6 and 7-8, respectively, on page 283. Round off all activity times to one decimal place. Use simulation to determine the probability that the project will take at least 50 days.

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DAYS IMMEDIATE m PREDECESSORS 8 13 ACTIVITY a 4 10 7 14 20 9 16 19 9 11 D, E C, F G, H