Activity Immediate Time Predecessors (weeks) 4 Activity Cost ($) 3000 4000 2500 9000 HINE A 2 3 A B,C 7 - I B 2 2400 Ripeka, the warehouse manager at Hine would like to update the company's inventory locator system so that the picking operation can be streamlined. While conceptually simple to do, she knows that there will be several steps to the update process that will have to be carefully managed. She needs to complete upgrade and train her staff in operating the new system before the busy season, which is only 4 months away. She identifies the various activities, expected time duration, predecessors and costs, as shown in the table. D 2 4000 2 1200 E,F,G 1 500 To Do: a) Draw the AON Network, and then determine the critical path. [6 Marks). Show your workings, using the grid network. b) Identify the project duration is this project feasible within the required timeframe? [3 Marks] c) Identify the project cost. [1 Mark]