Question: Reconsider the Reliable Construction Co. project introduced in Sec. 22.1, including the complete project network obtained in Fig. 22.5 at the end of Sec. 22.3.

Reconsider the Reliable Construction Co. project introduced in Sec. 22.1, including the complete project network obtained in Fig. 22.5 at the end of Sec. 22.3. Note that the estimated durations of the activities in this figure turn out to be the same as the mean durations given in Table 22.4 (Sec. 22.4) when using the PERT three-estimate approach.
Now suppose that the pessimistic estimates in Table 22.4 are used instead to provide the estimated durations in Fig. 22.5. Find the new earliest times, latest times, and slacks for all the activities in this project network. Also identify the critical path and the total estimated duration of the project. (Table 22.5 provides some clues.)

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