Activity Immediate Time Predecessors (Weeks) Normal Cost ($) Crash Cost ($) Sthique ethiqte thique ethique ple A - I Crash Time (Weeks) 4 6 5 3 5 3 2 4 5 5 8 7 6 8 3 3 4 6 B, C, D D D E F, G, H 400 1000 800 600 1200 800 500 400 900 As you will recall last week, Sara, the distribution manager at Ethique, is managing the upgrade project for the company's order-processing system. Last week, you determined that the project would take 31 weeks to complete. 750 2200 1100 1000 2200 800 700 400 1400 Sara's boss has just asked her to complete the project 3 weeks earlier. To Do: a) Use the AON Network and grid network you developed last week in Week 10 (homework problem #1), and devise the lowest cost approach to crashing the project by 3 weeks. Show all options considered, using the grid network. [6 Marks]. b) Identify the critical path of the recommended solution. [2 marks] c) Determine the new project cost for the revised timeline. [2 marks] Activity Immediate Time Predecessors (Weeks) Normal Cost ($) Crash Cost ($) Sthique ethiqte thique ethique ple A - I Crash Time (Weeks) 4 6 5 3 5 3 2 4 5 5 8 7 6 8 3 3 4 6 B, C, D D D E F, G, H 400 1000 800 600 1200 800 500 400 900 As you will recall last week, Sara, the distribution manager at Ethique, is managing the upgrade project for the company's order-processing system. Last week, you determined that the project would take 31 weeks to complete. 750 2200 1100 1000 2200 800 700 400 1400 Sara's boss has just asked her to complete the project 3 weeks earlier. To Do: a) Use the AON Network and grid network you developed last week in Week 10 (homework problem #1), and devise the lowest cost approach to crashing the project by 3 weeks. Show all options considered, using the grid network. [6 Marks]. b) Identify the critical path of the recommended solution. [2 marks] c) Determine the new project cost for the revised timeline. [2 marks]