Problems 3.8, 3.10, 3.11, 3.12, and 3.23
3.8 Roger Ginde is developing a program in supply chain management certification for managers. Ginde has listed a number of activities that must be completed before a training program of this nature could be conducted. The activities, immediate predecessors, and times appear in the accompanying table:
Activity |
Immediate Predecessor (S) |
Time (Days) |
A |
- |
2 |
B |
- |
5 |
C |
- |
1 |
D |
B |
10 |
E |
A,D |
3 |
F |
C |
6 |
G |
E,F |
8 |
- Develop an AON network for this problem.
- What is the critical path?
- What is the total project completion time?
- What is the slack time for each individual activity?
3.10 The activities described by the following table are given for the Howard Corporation in Kansas:
Activity |
Immediate Predecessor (S) |
Time |
A |
- |
9 |
B |
A |
7 |
C |
A |
3 |
D |
B |
6 |
E |
B |
9 |
F |
C |
4 |
G |
E,F |
6 |
H |
D |
5 |
I |
G,H |
3 |
- Draw the appropriate AON PERT diagram for J.C. Howard’s management team.
- Find the critical path.
- What is the project completion time?
3.11 The following is a table of activities associated with a project at Rafay Ishfaq’s software firm in Chicago, their durations, and what activities each must precede:
Activity |
Duration (Weeks) |
Precedes |
A (start) |
1 |
B,C |
B |
1 |
E |
C |
4 |
F |
E |
2 |
F |
F (end) |
2 |
- |
- Draw an AON diagram of the project, including activity durations.
- Define the critical path, listing all critical activities in chronological order.
- What is the project duration (in weeks)?
- What is the slack (in weeks) associated with any and all noncritical paths through the project?
3.12 The activities needed to build a prototype laser scanning machine at Dave Fletcher Corp. are listed in the following table. Construct an AON network for these activities.
Activity |
Immediate Predecessor (S) |
Activity |
Immediate Predecessor (S) |
A |
- |
E |
B |
B |
- |
F |
B |
C |
A |
G |
C,E |
D |
A |
H |
D,F |
3.23 Using PERT, Adam Munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4.
- What is the probability that the project will be completed in 17 months?
- What is the probability that the project will be completed in 20 months?
- What is the probability that the project will be completed in 23 months?
- What is the probability that the project will be completed in 25 months?
- What is the due date that yields a 95% chance of completion?
Irfanrai_530
- Ratings 0
- Grade: No Rating
- Questions 12
- Solutions 144
- Blog 0
- Earned: $189.00