Question: =11-18 A project was planned using PERT with three time estimates. The expected completion time of the project was determined to be 40 weeks. The

=11-18 A project was planned using PERT with three time estimates. The expected completion time of the project was determined to be 40 weeks. The variance of the critical path is 9.

(a) What is the probability that the project will be finished in 40 weeks or less?

(b) What is the probability that the project takes longer than 40 weeks?

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