Please answer the 4 questions below at the bottom: 1) a) The normal and crash times for each activity are shown in the table below. It is required to compute the different minimum cost schedule that occur between normal and crash times. Identify the normal and crash cost and time times. $100 Activity Normal Crash Time Cost Time Cost (1,2) 8 $100 6 $200 (1,3) 4 $150 2 $350 (2,4) 2 $50 1 $90 (2,5) 10 $100 5 $400 (3,4) 5 1 $200 (4,5) 3 $80 1 $100 (10) b) The following triple times are given for activities in a project. Find the critical path and critical time. Management wants to know the probability of completing the project in less than 2 months of critical time. Activities Optimistic time (a) Pessimistic time (b) Most likely time(m) (1,2) 2 2 (2,3) 1 1.5 (2,4) 0.5 1 (3,5) 2.5 (3,6) 2 (4,5) (4,6) 11 (5,6) All times are in months. Show the Te and T. on the events. (10) i) Find the critical path and time. ii) Draw the Project network Write the TE & TL on the events. iv) Calculate the probability of finishing the project in 32.5 days. 8 11 7.5 7 3 8 1 1 6 3 4 7 4 6 8