Use the following project information:

Activity		Optimistic Time Estimate(weeks)		Most Likely Time Estimates (weeks)		Pessimistic Time Estimates (weeks)		Immediate Predecessor(s)
A		2		7		11		none
B		2		5		9		A
C		4		6		12		A
D		5		6		10		B
E		6		10		17		C
F		3		4		6		D,E
G		3		6		10		D,E
H		5		7		10		F
I		5		8		11		G
J		3		3		3		H,I

(a) Calculate the expected completion time for this project.

(Round your answer to 2 decimal places, the tolerance is +/-0.01.)

Project completion time = weeks.

(b) Identify the activities included on the critical path of this project. (If there are several critical paths enter the first one from the alphabetical order.)

Critical activities:

ACEFHJ

ABDFHJ

ACEGIJ

ABDGIJ

.