The company wants to implement the new project. The following are the activities required to complete the project, the precedence relationship of the activities and the activity estimates (in weeks) also given as below:

Draw the network diagram; determine the earliest and latest activity times, the expected time of completion, standard deviation, and the probability that the project will be completed in 40 weeks or less.

Activity Code A C D B E F I M Precedence Requirement A C A - E B.D F.I Optimistic 5 3 4 5 1 1 3 1 Most likely 8 12 7 8 1 4 6 2.5 Pessimistic 17 15 10 23 1 13 9 7