Problem 4-8

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

		TIMES (DAYS)
ACTIVITY	IMMEDIATE PREDECESSORS	a	m	b
A		1	4	7
B		3	5	10
C	A	2	5	8
D	A	4	6	11
E	B	1	2	3
F	C, D	3	5	7
G	D, E	1	2	6
H	F, G	2	5	6

b.	What is the critical path?
	A-D-F-H B-E-G-H A-C-F-H A-D-G-H

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

Project completion time

days

d.	What is the probability of completing this project within 22 days?(Use Excel's NORMSDIST() function to find the correct probability for your computedZ-value. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to 4 decimal places.)

Probability

b. The critical path is A D F H

c. The Expected project time is 20.166 days

d. I cannot figure out (d) can you help me with this one?

Thank you!