Problem: A project is composed of 8 tasks. The three-time estimates (in days) for each activity and the precedence requirements for each are shown in the table below:
Activity.............Activity Time Estimates...........Immediate Predecessor
A..................................2,3,4......................................None
B.................................3,4,11.....................................None
C..................................1,2,3.......................................A,B
D..................................4,5,12........................................C
E..................................3,5,7..........................................C
F..................................2,3,4..........................................E
G..................................2,3,10........................................C
H..................................2,3,4.......................................D,G,F
I....................................2,3,10.......................................D,F
J...................................1,2,3...........................................H
K..................................1,2,3...........................................I,J
Q1. Determine the critical path or paths
Q2. Determine slack times for all activities and fill the table in the answer sheet
Q3. What are the chances that the project will finish within 25 days
Q4. What are the chances that the project will take longer than expected to finish.