12-14 Jean Walker is making plans for spring break at the beache

# 12-14 Jean Walker is making plans for spring break at the beache

398.7k points

Application Assignment 1

Chapter 12: Project Management. Text Book: Quantitative Analysis for Management 11th ed, Render, Stair, Hanna.

12-14

Jean Walker is making plans for spring break at the beaches in Florida. In applying techniques she learned in her quantitative methods class, she has identified the activities that are necessary to prepare for her trip. The following table lists the activities and the immediate predecessors.  Draw the network for this project. (Excel Format)

ACTIVITY                                                                              IMMEDIATE PREDECESSOR

A                                                                                                             ___

B                                                                                                             ___

C                                                                                                             A

D                                                                                                             B

E                                                                                                              C, D

F                                                                                                              A

G                                                                                                             E, F

12-15

The following are the activity times for the project in Problem 12-14. Find the earliest, latest, and slack times for each activity. Then find the critical path. (Excel Format)

ACTIVITY                                                                              TIME (DAYS)

A                                                                                                             3

B                                                                                                             7

C                                                                                                             4

D                                                                                                             2

E                                                                                                              5

F                                                                                                              6

G                                                                                                             3

12-19

Tom Schriber, a director of personnel of Management Resources, Inc., is in the process of designing a program that its customers can use in the job-finding process. Some of the activities include preparing resumes, writing letters, making appointments, to see prospective employers, researching companies and industries, and so on. Some of the information on the activities is shown in the following table: (Excel Format)

DAYS IMMEDIATE

ACTIVITY                              a  m  b                                   PROCESSORS

A                                             8 10 12                                                  ---

B                                             6   7   9                                                   ---

C                                             3   3   4                                                   ---

D                                             10 20 30                                                A

E                                              6   7    8                                                  C

F                                              9 10 11                                                  B, D, E

G                                             6   7   10                                 B, D, E

H                                             14 15 16                                                    F

I                                               10 11 13                                                  F

J                                              6     7    8                                                G, H

K                                             4     7    8                                             I, J

L                                              1    2     4                                                G,H

a) Construct a network for this problem.

b.) Determine the expected time and variance for each activity.

c.) Determine ES, EF, LS, LF, and slack for each activity.

d.) Determine the critical path and project completion time.

e.) Determine the probability that the project will be finished in 70 days or less.

f.) Determine the probability that the project will be finished in 80 days or less.

g.) Determine the probability that the project will be finished in 90 days or less.

12-21

The air pollution project discussed in the chapter has progressed over the past several weeks, and it is now the end of week 8. Lester Harky would like to know the value of the work completed the amount of any cost overruns or underruns for the project, and the extent to which the project is ahead of or behind schedule by developing a table like Table 12.8. The revised cost figures are shown in the following table: (Excel Format)

ACTIVITY                              PERCENT OF COMPLETION                          ACTUAL COST

A                                                             100                                                              20,000

B                                                             100                                                              36,000

C                                                             100                                                              26,000

D                                                             100                                                               44,000

E                                                                50                                                               25,000

F                                                                60                                                               15,000

G                                                               10                                                                 5,000

H                                                               10                                                                 1,000

12-14

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Excerpt from file: 1214.JeanWalkerismakingplansforspringbreakatthebeachesinFlorida.Inapplyingtechniquesshe andtheimmediatepredecessors.Drawthenetworkforthisproject. ACTIVITY IMMEDIATEPREDECESSOR A B C D E F G 1215.ThefollowingaretheactivitytimesfortheprojectinProblem1214.Findtheearliest,latest,andsla Activity A B C D

Filename: PM1045.xlsx

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400 points

Tom Schriber, a director of personnel of Management Resources, Inc., is in the process of designing a program that its customers can use in the job-finding process. Some of the activities include preparing resumes, writing letters, making appointments, to see prospective employers, researching companies and industries, and so on. Some of the information on the activities is shown in the following table: (Excel Format)

DAYS IMMEDIATE

ACTIVITY a m b PROCESSORS

A 8 10 12 ---

B 6 7 9 ---

C 3 3 4 ---

D 10 20 30 A

E 6 7 8 C

F 9 10 11 B, D, E

G 6 7 10 B, D, E

H 14 15 16 F

I 10 11 13 F

J 6 7 8 G, H

K 4 7 8 I, J

L 1 2 4 G,H

a) Construct a network for this problem.

b.) Determine the expected time and variance for each activity.

c.) Determine ES, EF, LS, LF, and slack for each activity.

d.) Determine the critical path and project completion time.

e.) Determine the probability that the project will be finished in 70 days or less.

f.) Determine the probability that the project will be finished in 80 days or less.

g.) Determine the probability that the project will be finished in 90 days or less.

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