9. Now suppose the activity times for A, B, C, D, E, F, G, H (for the previous example) are as follows:

Activity	Duration (in weeks)
A	3
B	4
C	2
D	2
E	4
F	3
G	2
H	1

What is the critical path of the project? How long does the project take to complete?

10. We ask an estimator to verify the duration assessment above (given in Q9). The estimator comes back with a new set of estimates given below, which explicitly factor in uncertainty.

Activity	Best case duration (in weeks)	Most likely case duration	Worst case duration
A	2	3	5
B	2	4	6
C	1	2	3
D	2	2	4
E	3	4	8
F	1	3	6
G	2	2	2
H	1	1	3

a) How long does the project take to complete on average?

b) What is the most likely duration taken to complete the project?

c) Give the histogram for the project duration.

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