1. Considering the following project, determine the Critical Path?

Activity	Expected Duration	Predecessor
A	5	-
B	3	A
C	1	A, B
D	5	C
E	10	B
F	2	E
G	3	D
H	4	F, G
I	5	H

Notes:

- Durations are in days.

2. Calculate the total project duration (project expected duration + buffer) to get a 95% confidence of delivering the project on time?

Notes:

- All activities respond to a beta distribution. The expected duration is the mean value of the beta distribution.

- Consider that all activities have a standard deviation equal to 30% of their expected duration.

- Round up the project duration to an integer number.

3. The project sponsor asked you to reduce the project duration by 3 days. You decide to crash one or more activities. Which activity would you crash first and why? Explain your assumptions if any.