Activity Preceding Time A 8 -- B 3 -- A 7 D А, В 3 E C 4 F 6 a. Draw the network diagram. b. Calculate the ES, EF, LS, LF, and Slack for each activity. Early Finish Task Early Start Late Late Slack Start Finish А B C E F c. What is project completion time?|

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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A network consists of the activities in the following list. Times are given in weeks.
Activity
Preceding
Time
A
В
3
--
C
A
7
А, В
3
E
4
F
D
a. Draw the network diagram.
b. Calculate the ES, EF, LS, LF, and Slack for each activity.
Early
Finish
Early
Start
Task
Late
Late
Slack
Start
Finish
A
B
C
D
E
F
c. What is project completion time?
Transcribed Image Text:A network consists of the activities in the following list. Times are given in weeks. Activity Preceding Time A В 3 -- C A 7 А, В 3 E 4 F D a. Draw the network diagram. b. Calculate the ES, EF, LS, LF, and Slack for each activity. Early Finish Early Start Task Late Late Slack Start Finish A B C D E F c. What is project completion time?
A partially solved PERT problem is detailed in the table below. Times are given in weeks.
Activity Preceding Optimistic Probable Pessimistic Expected
Time
Variance
Time
Time
Time
A
7
14
1.361
--
B
A
2
2
8
A
8
12
16
A
3
5
10
1.361
E
B
4
6
8
F
8
10
G
C, F
2
3
4
H
D
2
2
8
1.000
I
H
6.
8
16
2.778
G, I
Е, J
J
4
14
2.778
K
2
0.250
a. Calculate the expected time for each activity. Enter these values in the appropriate column in
the table above
Transcribed Image Text:A partially solved PERT problem is detailed in the table below. Times are given in weeks. Activity Preceding Optimistic Probable Pessimistic Expected Time Variance Time Time Time A 7 14 1.361 -- B A 2 2 8 A 8 12 16 A 3 5 10 1.361 E B 4 6 8 F 8 10 G C, F 2 3 4 H D 2 2 8 1.000 I H 6. 8 16 2.778 G, I Е, J J 4 14 2.778 K 2 0.250 a. Calculate the expected time for each activity. Enter these values in the appropriate column in the table above
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