Question: 1. Given the following network and probable activity time estimates, determine the expected time and variance for each activity and indicate the critical path. Activity

1. Given the following network and probable

1. Given the following network and probable activity time estimates, determine the expected time and variance for each activity and indicate the critical path. Activity 1-2 1-3 1-4 2-3 2-5 2-6 3-6 4-6 5-7 4-7 6-7 a 6 2 4 3 7 4 3 5 3 4 2 Time Estimates (weeks) m 10 7 8 10 9 12 6 9 20 12 9 b 15 16 11 15 20 15 9 16 35 16 14

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