Roger Ginde is developing a progam in supply chain managemont certification for manayers. Ginde has listed a number of activites that ment bo compiatod betore a training program of this nature could be conducted. The activises, immediate prodocessors, and times appear in the accompanying tatide. This oxarcise contains only parts b, c, and d. b) The critical activition for the leadership training program dovelopment projoct are activity. The total propet oompletion fime and the critical path should also be determined. Here are the actrity limes: Davo's earlost start (ES) and earliest finish (EF) aro. The following is a table of activities assoclated with a projoct at Rafay lshfac's software firm in Chicago. their durations, what activities each must precede and the crash cost to reduce duration per week: Suppose that Rafay is only given 6 weeks (instead of 9) to complote the project By how many weeks should each activity be crashed in order to meet the desadine? Assume that you can crash an activity down to 0 weeks duration