Course: Industrial Management and Engineering Economics
Note: Write briefly and in detail. because, every steps have own value.
Given by: Edossa Dugassa
Assignment 2 (Max 15%)
1.
Activity
A
B
C
D
E
F
G
H
I
J
K
Immed. Predec.
----A
B
C,D
D
E,F
F
G,H
H
I,J
For the above activity, determine: (5%)
A. The critical path and duration.
B. ES and EF for each activity.
C. LS and LF for each activity.
D. Float or slack for each activity.
Most Likely Time (Hr.)
6
5
3
5
1
4
2
6
5
3
5
2.
Activity
A
B
C
D
E
F
G
H
I
J
K
Optimistic Time
Immed. Predec.
(Hr.)
--4
--1
A
3
B
4
C,D
0.5
D
3
E,F
1
F
5
G,H
2
H
2.5
I,J
3
Most Likely
Time (Hr.)
6
4.5
3
5
1
4
1.5
6
5
2.75
5
Pessimistic Time
(Hr.)
8
5
3
6
1.5
5
5
7
8
4.5
7
For the above activity, determine: (5%)
A. The expected time of each activity.
B. The critical path and duration.
C. The probability of completing the project with less than 24 hrs.
D. The probability of completing the project within 20 hrs.
3. For the past 7 years, a quality manager has paid $500 every 6 months for the
software maintenance contract of a LAN. What is the equivalent amount after
the last payment, if these funds are taken from a pool that has been returning
20% per year, compounded quarterly? (5%)
Submit at Date of Your Final Exam