****Please help, I need to Post my answer in EXCEL QM, PLEASE SHOW ANSWER IN EXCEL QM******** Also which model should I use.*****

Given (Time in weeks):

Activity	Optimistic	Most Likely	Pessimistic
A	3	4	5
B	6	7	14
C	2	3	10
D	6	9	12
E	4	5	12
F	1	3	11
G	1	2	9
H	2	5	8
I	1	4	7

Review the network diagram (see attached) to answer this question.

Determine:

(a) the critical path.

(b) the probability that the project will be completed in 22 weeks.