1. EMGT 501 HW #3 Due Day: Oct 3 Chapter 10 - SELF TEST 7

2. What are the critical activities?
Ch. 10 – 7
A project involving the installation of a computer system comprises eight activities. The following table lists immediate predecessors and activity times (in weeks).
Immediate
Predecessor
Activity
Time A B C D E F G H - A
B,C D E
F,G 3 6 2 5 4 9
Draw a project network.
What are the critical activities?
What is the expected project completion time?

3. Ch. 10 – 18
The manager of the Oak Hills Swimming Club is planning the club’s swimming team program. The first team practice is scheduled for May 1. The activities, their immediate predecessors, and the activity time estimates (in weeks) are as follows.
Immediate
Predecessor
Time (weeks)
Most Probable
Activity
Description
Pessimistic
Optimistic A B C D E F G H I
Meet with board
Hire coaches
Reserve pool
Announce program
Meet with coaches
Order team suits
Register swimmers
Collect fees
Plan first practice - A
B,C B D G
E,H,F 1 4 2 1 6 4 2 3 2 8 6 3 4 1

4. Draw a project network.
Develop an activity schedule.
What are the critical activities, and what is the expected project completion time?
If the club manager plans to start the project on February1, what is the probability the swimming program will be ready by the scheduled May 1 date (13 weeks)? Should the manager begin planning the swimming program before February 1?

5. EMGT 501 HW #3 Solutions Chapter 10 - SELF TEST 7

6. Ch. 10 – 7 a. D A C E F
Start H
Finish B G
b. B-D-E-F-H

7. Ch. 10 – 7 c. 21 weeks Earliest Start Latest Start Earliest Finish
Critical
Activity
Activity
Slack A B C D E F G H 3 6 11 15 18 1 4 6 11 15 9 18 3 6 5 11 15 18 21 4 6 11 15 18 21 1 3
Yes

8. Ch. 10 – 18 C D G H
Start A B E I
Finish F

9. b. Activity Expected Time Variance A B C D E F G H I 1.17 6.00 4.00
2.00
3.00
1.00
0.03
0.44
0.11
0.00

10. Earliest
Start
Latest
Start
Earliest
Finish
Latest
Finish
Critical
Activity
Activity
Slack A B C D E F G H I
0.00
1.17
7.17
9.17
11.17
13.17
0.00
1.17
3.17
7.17
10.17
11.17
9.17
13.17
1.17
7.17
5.17
9.17
10.17
3.17
11.17
13.17
14.17
1.17
7.17
9.17
13.17
11.17
14.17
0.00
2.00
3.00
10.00
Yes

11. c. Critical Path: A-B-D-G-H-I
Expected Project Completion Time=
=14.17 weeks
d. Compute the probability of project completion in 13 weeks or less.
With this low probability, the manager should start prior to
February 1.