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e and then forecast demand 3 3. Here are the precedence requirements, normal and crash times and costs fo ti Preceding Time (weeks) Cos( Activity Activity Normal Crash Normal Cras 4 2 10,000 11,000 000 9,000 A 41 4000 6000 5 3 14,000 18,000 2 9,000 10,000 the AON network, find the critical path and the estimated completion time C 0b) How much slack time does Activity Chave without delaying the projet (CİToshorten the project by one week, which (2 points) fina oal project coot be be shortened and what would the
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E LFİLSİF=LS ES | Normal Crash Crash cost/we lek Slack=LF a. Activ PredecessolTime ES EF 01000011000 8 12 8 12 127 14 14| 12 6000 666.67 1400018000 10000 2000 C,D 12 90001 43000 ES, EF calculated from start to end EF= ES+cycle time LS, LF calculated from end to start LS LF-cycle time Path Time ACE ABDE 14 10 A. AON network is shown in figure ABDE is critical path due to zero slack and highest cycle time Estimated compeltion time is 14 weeks B. Activity Chas a slack of 4 weeks till the project completion time doesnt get affected. C. To shorten the project well select a critical activity and with lowest crash cost. Well select activity A or E and crash cost will be 500 Total cost of project 43500

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