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

		Time estimate (days)
Activity	Activity predecessor	a	m	b
A	-	2	3	6
B	A	2	4	7
C	A	3	5	9
D	A	4	5	7
E	B, D	5	6	10
F	C	3	5	9
G	E, F	2	5	7
H	F, G, D	1	4	8

a. Draw the network and show the ES, EF, LS, LF, and slack for each activity.

b. What is/are the critical path(s)?

c. What is the expected project completion time?

d. What is the probability of completing this project i) within 25 days and ii) more than 22 days?

e. If the probability of completion of the project is given as 0.75, within how many days will you complete the project?