Activity 1 2 3 4 5 6 7 8 9 10 Immediate activity Collect requirements Analyze processes Analyze data design processes design data design screens design reports program test and document install Time (weeks) Predecessors 3 2 2 6 3 2 4 5 7 2 1 2 2 3 3,4 4,5 6,7 7 8,9 a) Draw a network diagram b) Calculate the earliest expected completion time c) Show the critical path in your network diagram d) What would happen if activity 6 were revised to take six weeks instead of two