Question: The Daugherty Porta-Vac project discussed in Section 9.2 has an expected project completion time of 17 weeks. The probability that the project could be completed

The Daugherty Porta-Vac project discussed in Section 9.2 has an expected project completion time of 17 weeks. The probability that the project could be completed in 20 weeks or less is 0.9656. The noncritical paths in the Porta-Vac project network are: ADGJ ACFJ BHIJ

a. Use the information in Table 9.5 to compute the expected time and variance for each path shown.

b. Calculate the probability that each path will be completed in the desired 20-week period.

c. Why is the calculation of the probability of completing a project on time based on the analysis of the critical path? In what case, if any, would making the probability computation for a noncritical path be desirable?

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