## [answered] A project has the activity duration and cost information in

1. A project has the activity duration and cost information indicated in the table where all times are in weeks.

 Activity Predecessor Normal Time Normal Cost Crashed Time Crash Cost A -- 8 \$12,000 5 \$21,000 B A 12 \$20,000 9 \$30,000 C A 15 \$24,000 10 \$60,000 D B 3 \$10,000 2 \$15,000 E C 9 \$17,000 6 \$34,000 F E 7 \$5,000 6 \$6,000 G D 8 \$14,000 6 \$20,000 H A 12 \$22,000 10 \$30,000 I H 6 \$50,000 5 \$55,000 J F,G,I 11 \$33,000 9 \$50,000

a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

b. There is a penalty of \$7,000 per week for every week the project extends beyond 39 weeks. What is the lowest total cost for completing this project?

2. Now consider the hours needed per day for each activities in the table in #1. Use the values in the table to answer the following questions.

 Activity Normal Time (days) Hours needed per day Predecessor A 10 6 -- B 7 2 -- C 5 7 B D 4 3 C E 6 3 A F 8 6 D,E

a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

b. Assume that the project starts on Monday December 5th, 2016 and works 5 days a week. Create a resource loading table and a resource profile bar chart.

c. Assume that the maximum amount of time used per day is 8 hours. Level the resources in the resource loading table to satisfy the 8 hours per day. Then, discuss what happened on this project and give your suggestions..

1. A project has the activity duration and cost information indicated in the table where all times

are in weeks.

Activity

A

B

C

D

E

F

G

H

I

J Predecessor

-A

A

B

C

E

D

A

H

F,G,I Normal

Time

8

12

15

3

9

7

8

12

6

11 Normal

Cost

\$12,000

\$20,000

\$24,000

\$10,000

\$17,000

\$5,000

\$14,000

\$22,000

\$50,000

\$33,000 Crashed

Time

5

9

10

2

6

6

6

10

5

9 Crash

Cost

\$21,000

\$30,000

\$60,000

\$15,000

\$34,000

\$6,000

\$20,000

\$30,000

\$55,000

\$50,000 a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

b. There is a penalty of \$7,000 per week for every week the project extends beyond 39

weeks. What is the lowest total cost for completing this project?

2. Now consider the hours needed per day for each activities in the table in #1. Use the values

in the table to answer the following questions.

Activity

A

B

C

D

E

F Normal

Time (days)

10

7

5

4

6

8 Hours needed

per day

6

2

7

3

3

6 Predecessor

--B

C

A

D,E a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

b. Assume that the project starts on Monday December 5th, 2016 and works 5 days a

week. Create a resource loading table and a resource profile bar chart.

c. Assume that the maximum amount of time used per day is 8 hours. Level the resources in the

resource loading table to satisfy the 8 hours per day. Then, discuss what happened on this

1

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