Week 7 Assignment: PERT, CPM, and Critical Path Diagram Instructions Define "Critical path", "Slack time", "Resource Levelling" and "Dummy activity" with reference to PERT and CPM. An architect has been awarded a contract to prepare plans for an urban renewal project. The job consists of the following activities and their estimated value. Draw a critical path arrow diagram for this project, indicate the critical path and calculate the total slack and free slack for each activity. Job Description Predecessor Expected time in days A Prepare preliminary NA 2 sketches B Qutline specifications NA 1 C Prepare drawings A 3 D Wirite specifications AB 2 E Run prints CcD 1 F Have specifications printed BD 3 G Assemble bid package EF 1