The following represents a project that should be scheduled using CPM:

	IMMEDIATE PREDECESSORS	TIMES (DAYS)
ACTIVITY		a	m	b
A		1	3	8
B		1	2	9
C	A	2	3	7
D	A	1	2	12
E	B	1	2	3
F	C,D	1	3	5
G	D,E	1	7	13
H	F,G	2	5	13

b. What is the critical path?

• A-D-F-H

• A-C-F-H

• A-D-G-H

• B-E-G-H

c. What is the expected project completion time? (Do not round intermediate calculations. Round your answer to 3 decimal places.)

d. What is the probability of completing this project within 20 days? (Use Excel's NORM.S.DIST() function to find the correct probability for your computed Z-value. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to 4 decimal places.)