Question: To help with preparations, a couple has devised a project network to describe the activities that must be completed by their wedding date. C H

To help with preparations, a couple has devised a project network to describe the activities that must be completed by their wedding date. C H A D F Start Finish B E G The following table lists the activity time estimates (in weeks) for each activity. Activity Optimistic Most Probable Pessimistic A 4 5 B 2.5 3 3.5 C 5 6 7 D 5 5.5 9 E 5 7 9 F 2 3 4 G 7 9 11 H 5 6 13 Based only on the critical path, what is the estimated probability that the project will be completed within the given time frame? (Round your answers to four decimal places.) (a) Within 19 weeks? (b) Within 21 weeks? (c) Within 25 weeks

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