A project network is shown below. Use a forward and a backward pass to determine the critical path, and then fill out the table below. Activity times are in weeks. Activity Precedence Activities Activity Time (weeks) ES LS EF LF Slack Critical Path? A B C D E F G H I Now assume that the times listed are only the expected times instead of being fixed times. Is the probability of being finished in fewer than 25 weeks more or less than 50%?

Start Activity A B D E F G H A 5 8 B D 4 12 Precedence Activity Activities Time (weeks) ES F 10 LS G EF Finish Critical LF Slack Path?