CPM PERT CHART

Activity	Predecessor activity	Optimistic time (a)	Likely time (m)	Pessimistic time (b)	Expected Time T =(a+4m+b)/6
A	----	1	2	4
B	----	3	3.5	4
C	----	10	12	13
D	----	4	5	7
E	----	2	4	5
F	A	6	7	8
G	B	2	4	5.5
H	C	5	7.7	9
I	C	9.9	10	12
J	C	2	4	5
K	D	2	4	6
L	E	2	4	6
M	F,G,H	5	6	6.5
N	J,K,L	1	1.1	2
O	I,M	5	7	8
P	N	5	7	9

1. Calculate the expected project time
2. Draw By HAND PERT Chart:
3. Count the following:

• Early Start (ES)
• Early Finish (EF)
• Lately Start (LS)
• Lately Finish (LF)
• Slack

4. Calculating the redundant times of activities and determining the critical path.

Please drow the PERT chart by hand with the numbers and detailes