Question

Use the following activities and their three duration estimates (in days) to do the following

1. Determine the expected duration of the project – use 2 decimals when determining the duratio

   Path	Activity	Optimistic	Most Likely	Pessimistic
   a-b-c	A	4	5	6
   	B	7	8	10
   	C	3	5	9
   d-e-f	D	7	8	11
   	E	2	3	4
   	f	1	4	6

Answer 1

Expected Duration of Activity = (Optimistic Time + 4*Most Likely Time + Pessimistic Time)/6

Expected Duration of Activity A = (4+4*5+6)/6 = 5 days

Expected Duration of Activity B = (7+4*8+10)/6 = 8.17 days

Expected Duration of Activity C = (3+4*5+9)/6 = 5.33 days

Expected Duration of Path A-B-C = 5+8.17+5.33 = 18.50 days

Expected Duration of Activity D = (7+4*8+11)/6 = 8.33 days

Expected Duration of Activity E = (2+4*3+4)/6 = 3 days

Expected Duration of Activity F = (1+4*4+6)/6 = 3.83 days

Expected Duration of Path D-E-F = 8.33+3+3.83 = 15.16 days