D Table 2.1: Network information activity for Bixin Sdn. Bhd. ACTIVITY DESCRIPTION PREDECESSOR A Finalise all specifications B Hardware design completion A Design software Manual layout completion E Breadboard running F Hardware fully functional E G PC board released C.F H Software finished C.F I Manufacture hardware G Documentation manual and printing K Product launch HIJ A B J D Table 2.2: Activity time to develop one unit tank Time Estimates (days) Crash cost Max crash Activity Optimistic Most Likely Pessimistic (RM/5 days) time(day) A 19.8 27.2 33.4 8,000 15 B 11.5 18.3 23.3 10,000 5 19.8 27.1 33.8 1,000 10 D 9.9 143 16.9 1,000 5 E 9 12 5,500 5 F 9.7 14.4 16.7 5,500 5 G 4.9 8.9 13.5 13,000 5 H 15.3 23 30.7 2.500 10 1 11.3 18.3 23.5 4,000 5 J 24.6 34.8 46.2 1,500 15 K 4.9 9.4 11.5 15,000 5 Based on the given data; Construct a network diagram and estimate the expected project completion time. Identify also the critical path (6 marks) Analyse the probability that the project can be completed in 98 days. (Use APPENDIX IV as a reference for calculating Z value and probability.) (6 marks) ge 2 2 SEMM/SKMM 3813 If the project needs to be shorten to 90 days, determine the minimum additional cost required. Construct a revised project network diagram by showing a new critical path after crashing. (8 marks)