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.

a. A,B,H,I

b. A,B,E,F,I

c. A,B,E,F,H,I

d. A,B,C,D,G,H,I

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.

a. 35 days

b. 26 days

c. 36 days

d. 29 days

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.