5. In a construction project nine major activities have been identified TL time in weeks and their immediate predereson. a) What is the expected completion time for each activity (Use the column) (3) b) Draw the network diagram using Activity on Node convention (6 sectional box node) c) Identify each path that lead from start to end of the project d) Identify the critical path and critical activities in the network diagram (2+2) e) Find the slack time for non-critical activities in the network diagram (4+3)