Homework Assignment Two

Problem 5 : Nicholas Glaskowsky, director of personnel of Glaskowsky Resources, Inc., is in the process of designing a program that his customers can use in the job-finding process. Some of the activities include preparing résumés, writing letters, making appointments to see prospective employers, researching companies and industries, and so on. Some of the information on the activities appears in the following table:

1. Draw an AON network for this problem.
2. Determine the expected times and variances for each activity.
3. Determine ES, EF, LS, LF, and slack for each activity.
4. Determine the critical path and project completion time.
5. Determine the probability that the project will be finished in 70 days.
6. Determine the probability that the project will be finished in 80 days.
7. Determine the probability that the project will be finished in 90 days.

3.6

Activity Immediate Predecessors Time(days)

A __ 2

B __ 5

C __ 1

D B 10

E A, D 3

F C 6

G E, F 8

a) Develop an AON network for this problem?

b) What is the critical path?

c) What is the total project completion time?

d) What is the slack time for each individual activity?

3.14

Latta Carpet and Trim installs carpeting in commercial offices. Carol Latta has been very concerned with the amount

of time it took to complete several recent jobs. Some of her workers are very unreliable. A list of activities and their

optimistic completion time, the most likely completion time, and the pessimistic completion. Determine the expected

completion time and variance for each activity.

Activity Time (days) Immediate Predecessors

a m b

A 3 6 8 ___

B 2 4 4 ___

C 1 2 3 ___

D 6 7 8 C

E 2 4 6 B, D

F 6 10 14 A, E

G 1 2 4 A, E

H 3 6 9 F

I 10 11 12 G

J 14 16 20 C

K 2 8 10 H, I

Determine the expected completion time and variance for each activity?

also draw the network in AON format.

3.15

Carol Latta would like to determine the total project completion time and the critical path for installing carpeting in a

large new office building. See problem 3.14 for details. In addition, determine ES, EF, LS, LF and slack for each activity.

3.16

What is the probability that Latta Carpet and trim will finish the project described in problems 3.14 and 3.15 in 40

days or less?

Price: $14.12

Solution: The downloadable solution consists of 8 pages, 612 words and 3 charts.
Deliverable: Word Document