Practical Management Science
Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels.
Time (weeks)
Time (weeks)
Immediate
Predecessor(s)
Immediate
Predecessor(s)
Activity
A
ABCO
B
с
D
a
6
6000
1
8
4
1
6
m
8
9
14
6
3
9
b
10
23
18
10
4
21
-
A
Activity
G
H
LIH
a
K
3
977 W
2
6
E
F
C, E
a) The expected (estimated) time for activity C is 13.67 weeks. (Round your response to two decimal places.)
b) The variance for activity C is 3.03 weeks. (Round your response to two decimal places.)
c) Based on the calculation of the estimated times, the critical path is A-C-F-H-J-K
d) The estimated time for the critical path is 43.34 weeks. (Round your response to two decimal places.)
e) The activity variance along the critical path is weeks. (Round your response to two decimal places.)
1
m
3277
3
2
7
7
1
b
52724
12
C, E
F
F
D, G, H
I, J
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Transcribed Image Text:Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Time (weeks) Time (weeks) Immediate Predecessor(s) Immediate Predecessor(s) Activity A ABCO B с D a 6 6000 1 8 4 1 6 m 8 9 14 6 3 9 b 10 23 18 10 4 21 - A Activity G H LIH a K 3 977 W 2 6 E F C, E a) The expected (estimated) time for activity C is 13.67 weeks. (Round your response to two decimal places.) b) The variance for activity C is 3.03 weeks. (Round your response to two decimal places.) c) Based on the calculation of the estimated times, the critical path is A-C-F-H-J-K d) The estimated time for the critical path is 43.34 weeks. (Round your response to two decimal places.) e) The activity variance along the critical path is weeks. (Round your response to two decimal places.) 1 m 3277 3 2 7 7 1 b 52724 12 C, E F F D, G, H I, J
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