1. Develop an activity-on-arrow diagram for the above activities.

2. Compute the Critical Path/s and show it/them on the diagrams. 3. What is the probability that this project will be completed within 25 weeks? 4. What is the probability that this project will be completed within 26 weeks? 5. What is the risk that this project will exceed 27 weeks? 6. What is the completion time having a probability of 84%?

Activity Code	Immediate Predecessors	Optimistic A	Most Likely M	Pessimistic B	Expected Time	Variance	Standard of Deviation
A	None	10	12	14	12	0.44	0.66
B	None	4	8	10	7.66	1	1
C	B	6	6	6	6	0	0
D	B	3	6	10	6.16	1.36	1.16
E	A,C	1	2	3	2	0.11	0.33
F	A,C,D	1	2	4	2.16	0.25	0.5
G	E	2	2	6	2.66	0.44	0.66
H	E	3	5	6	4.83	0.25	0.5
I	G,F	4	5	6	5	0.11	0.33