Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Activity A B с D E F a Time (weeks) 6 2 9 4 1 6 m 8 8 12 7 3 8 b 12 23 16 10 4 21 Immediate Predecessor(s) A A A B C, E Activity G H I J K a 3 2 5 4 1 Time (weeks) m 3 2 5 8 1 a) The expected (estimated) time for activity C is b) The variance for activity C is weeks. (Round your response to two decimal places.) c) Based on the calculation of the estimated times, the critical path is b 4 2 5 12 4 Immediate Predecessor(s) C, E F F D, G, H I, J weeks. (Round your response to two decimal places.) d) The estimated time for the critical path is 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.) f) Using the standard normal table, the probability that Hopkins Hospitality will finish the project in 36 weeks or less is . (Enter as a probability and round your response to three decimal places.)

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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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)
Activity
A
B
C
D
E
F
a
6
2
9
4
1
6
m
8
8
12
7
3
8
b
12
23
16
10
4
21
Immediate
Predecessor(s)
A
A
A
B
C, E
Activity
G
H
J
K
a
3
2
5
4
1
Time (weeks)
m
3
2
5
8
1
a) The expected (estimated) time for activity C is
b) The variance for activity C is weeks. (Round your response to two decimal places.)
c) Based on the calculation of the estimated times, the critical path is
b
4
2
5
12
4
weeks. (Round your response to two decimal places.)
D
Immediate
Predecessor(s)
C, E
F
F
D, G, H
I, J
d) The estimated time for the critical path is
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.)
f) Using the standard normal table, the probability that Hopkins Hospitality will finish the project in 36 weeks or less is
(Enter as a probability and round your response to three decimal places.)
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) Activity A B C D E F a 6 2 9 4 1 6 m 8 8 12 7 3 8 b 12 23 16 10 4 21 Immediate Predecessor(s) A A A B C, E Activity G H J K a 3 2 5 4 1 Time (weeks) m 3 2 5 8 1 a) The expected (estimated) time for activity C is b) The variance for activity C is weeks. (Round your response to two decimal places.) c) Based on the calculation of the estimated times, the critical path is b 4 2 5 12 4 weeks. (Round your response to two decimal places.) D Immediate Predecessor(s) C, E F F D, G, H I, J d) The estimated time for the critical path is 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.) f) Using the standard normal table, the probability that Hopkins Hospitality will finish the project in 36 weeks or less is (Enter as a probability and round your response to three decimal places.)
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