18) The planning for a project determined it is composed of the following tasks, predecessors, and durations (note the two columns):

TASK	PREDECESSORS	DURATION	TASK	PREDECESSORS	DURATION
A	-	6	N	K	9
B	-	7	O	L	5
C	B	5	P	O	7
D	A,C	10	Q	M	20
E	D,I	16	R	M	10
F	-	9	S	R	12
G	F	11	T	R	10
H	-	10	U	N,P,T	8
I	G,H	18	V	U	9
J	E	8	W	Q,S,V	10
K	E	5	X	Q,S	6
L	E	8	Y	X	9
M	J	8	Z	Q	5

Without using any software package, manually construct the appropriate CPM network diagram using the activity on arrow convention and the techniques discussed in the class. You must submit your diagram for full credit:

In an attached file, address the following:

(a) For each task, give the Earliest Start, Latest Start, Earliest Finish, Latest Finish, and Total Float.

(b) What sequence of tasks makes up the Critical Path? Include any dummy activities that may be a part of the critical path.

(c) What is the total duration of the project as planned?

Sequence of tasks that make up the critical path: Total duration of the project as planned