a) Based on the information in Table 1, how many weeks need to be taken to finish the project? Draw a complete of the precedence diagram. [10 marks Calculate each path's total activity time based on Table 1. [6 marks Draw a complete Gantt chart of a Cool room prototype based on Table 2. 19 marks] (b) (c) B F G Finish 4 4 5 6 0 Table 1. Project Management Activity Start A B C D E Activity Time 0 3 5 (week) Immediate Start Start B A A,B Predecessors Unique number -8.-7, -5, 4.-3, -2, -1 0 A DE CE F G 0 1, 2, 3, 4, 5, 6 12 8 4 4 2 6 Table 2. Prototype Cool Room Project Task Name and Activity Duration (day) Predecessors START 0 A 2 START START B 3 D Cool room project Build internal components Modify roof & floor Construct collection stack Pour concrete & install frame Build-high temp bumer Install pollution control system Install air pollution device Inspect & Test Complete 2 4 4 E F G A AB DE F,G 3 5 H 2 END 0 H