The time-cost estimates for the various activities of a design project are given below: me7400 Activity Immediate Normal Normal Cost Crash Time predecessor Time (days) ($) (days) 76657 2022105/22 2 50 B A 4 80 C A 8 70 A 6 60 B 7 100 F D 4 40 G E, F 5 100 The indirect costs for each project duration are given below: D E 1 2 4 5 6 3 4 Crash Cost (S) 70 160 110 80 130 100 150