Thompson Construction Company soon will begin work on a building for Echelon Savings Bank. Work on the building was started by another construction firm that has gone out of business. The company has agreed to complete the project. The company s schedule of activities and related expected completion times for the Echelon Savings Bank project are presented in the following table: Required: (1) Prepare the PERT network. (2) Identify the critical path and determine the expected time in weeks for the project. (3) Explain the effect on the critical path and expected time for the project if the company is not required to apply for and obtain the waiver to add new materials.

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