Operations and Supply Chain Management
14th Edition
ISBN: 9780078024023
Author: F. Robert Jacobs
Publisher: MCG
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Chapter 18, Problem 26OQ
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To help with preparations, a couple has devised a project network to describe the activities that must be completed by their wedding date.
Start
A
Ꭰ
F
B
E
The following table lists the activity time estimates (in weeks) for each activity.
Optimistic Most Probable
Activity
Pessimistic
A
4
5
6
B
2.5
3
3.5
C
5
6
7
D
5
5.5
9
E
5
7
9
F
2
3
4
G
7
9
11
H
5
6
13
H
Finish
Based only on the critical path, what is the estimated probability that the project will be completed within the given time frame? (Round your answers to four decimal places.)
(a) Within 19 weeks?
(b) Within 21 weeks?
(c) Within 25 weeks?
You may need to use the appropriate technology to answer this question.
Mueller
Associates is a urban planning firm that is designing a new public park in an Omaha suburb. Coordination of the architect and subcontractors will require a major effort to meet the 46-week completion date requested by the owner. The Mueller project manager prepared the following project network.
B
H
Start
A
C
G
Finish
E
Estimates of the optimistic, most probable, and pessimistic times (in weeks) for the activities are as follows.
Activity Optimistic Most Probable
Pessimistic
A
4
12
B
6
7
8
C
6
18
D
3
5
7
E
6
9
18
F
5
8
17
G
10
15
20
H
5
13
(a) Find the critical path. (Enter your answers as a comma-separated list.)
(b) What is the expected project completion time (in weeks)?
weeks
i
(c) Based only on the critical path, what is the estimated probability the project can be completed in 46 weeks as requested by the owner? (Round your answer to four decimal places.)
(d) Based only on the critical path, what is…
Bridge City Developers is coordinating the construction of an office complex. As part of the planning process, the company generated the following activity list. Draw a project network that can be used to assist in the scheduling of the project activities.
Activity
Immediate Predecessor
ABC
E
FGH
]
A, B
A, B
D
E
с
с
F, G, H, I
A
E
Start
B
D
A
E
Start
B
D
H
H
E
A
E
Finish
Start
D
F
J
Finish
Start
B
D
F
Finish
Finish
C
H
I
H
Chapter 18 Solutions
Operations and Supply Chain Management
Ch. 18 - Prob. 1DQCh. 18 - It is a common saying that the only thing certain...Ch. 18 - From the choice of the simple moving average,...Ch. 18 - All forecasting methods using exponential...Ch. 18 - Prob. 5DQCh. 18 - Prob. 6DQCh. 18 - What implications do forecast errors have for the...Ch. 18 - Causal relationships are potentially useful for...Ch. 18 - Let’s say you work for a company that makes...Ch. 18 - Prob. 10DQ
Ch. 18 - Prob. 11DQCh. 18 - What is the term for forecasts used for making...Ch. 18 - Prob. 2OQCh. 18 - Given the following history, use a three-quarter...Ch. 18 - Prob. 4OQCh. 18 - Prob. 5OQCh. 18 - Prob. 6OQCh. 18 - Prob. 7OQCh. 18 - Prob. 8OQCh. 18 - Prob. 9OQCh. 18 - Prob. 10OQCh. 18 - Prob. 11OQCh. 18 - Prob. 12OQCh. 18 - Prob. 13OQCh. 18 - Prob. 14OQCh. 18 - Historical demand for a product is
Using a...Ch. 18 - Prob. 16OQCh. 18 - Here are the actual tabulated demands for an item...Ch. 18 - A particular forecasting model was used to...Ch. 18 - Prob. 19OQCh. 18 - Prob. 20OQCh. 18 - Prob. 21OQCh. 18 - Your manager is trying to determine what...Ch. 18 - After using your forecasting model for six months,...Ch. 18 - Zeus Computer Chips, Inc. used to have major...Ch. 18 - Prob. 25OQCh. 18 - Prob. 26OQCh. 18 - Prob. 27OQCh. 18 - Prob. 28OQCh. 18 - Prob. 29OQCh. 18 - Prob. 30OQCh. 18 - Prob. 31OQCh. 18 - Prob. 32OQCh. 18 - Prob. 33OQCh. 18 - Prob. 34OQCh. 18 - Prob. 35OQCh. 18 - Prob. 36OQCh. 18 - Prob. 37OQCh. 18 - Prob. 38OQCh. 18 - Analytics Exercise: Forecasting Supply Chain...Ch. 18 - Prob. 2AECh. 18 - Prob. 3AECh. 18 - Prob. 4AECh. 18 - Prob. 1PECh. 18 - Prob. 2PECh. 18 - Prob. 3PECh. 18 - Prob. 4PECh. 18 - Prob. 5PECh. 18 - Prob. 6PECh. 18 - Prob. 7PECh. 18 - Prob. 8PECh. 18 - Prob. 9PECh. 18 - Prob. 10PECh. 18 - Prob. 11PECh. 18 - In each of the following, name the term defined or...Ch. 18 - Prob. 13PE
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