Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 7, Problem 4AME
Summary Introduction
Interpretation:The effect of increasing activity A by 1 week after becoming critical is to be determined.
Concept Introduction: Critical path is a method used to evaluate the project. It is used when the activity times are deterministic. It is the longest path in the network. It defines the minimum time required for completion of the project.
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Students have asked these similar questions
Activity E has an optimistic time of 9 days, a most likely time of 12 days, and a pessimistic time of 15 days. Estimate its expected time and standard deviation.
Crashed Completion
time (week)
Crashed Cost per
Preceding
Activity
Normal Completion
Time (week)
Activity
week
A
7
5
$600
$700
$400
$800
12
10
A
8
2
D
9
7
E
C, D
5
4
$300
F
E
9
8
$500
G
D, F
10
10
Find the minimum possible completion time of the project by considering the crashed
completion times and the minimal total cost of that crashing the project.
Highlight the critical and non-critical activities of the finally completed project by taking into
account the crashed times of activities.
Roger Ginde is developing a program in supply chain management certification for managers. Ginde has listed a number of activities that must be completed before a training program of this nature
could be conducted. The activities, immediate predecessors, and times appear in the accompanying table:
Immediate Predecessor(s)
Activity
A
B
C
D
E
F
G
This exercise contains only parts b, c, and d.
b) The critical activities for the leadership training program development project are A-E-G
c) The project length for the leadership training program development project = 22 days.
d) Slack time for each of the activities is:
B
A, D
C
E, F
Activity
A
B
Slack Time
0
Time (days)
10
6
3
2
4
8
Chapter 7 Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Ch. 7 - One of your colleagues comments that software is...Ch. 7 - Explain how to determine the slack for each...Ch. 7 - Define risk as it applies to projects. What are...Ch. 7 - Consider the following data for a project to...Ch. 7 - The following information is known about a project...Ch. 7 - A project for improving a billing process has the...Ch. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Consider the following information for a project...Ch. 7 - Consider the following data for a project to...
Ch. 7 - Paul Silver, owner of Sculptures International,...Ch. 7 - Prob. 9PCh. 7 - The following information concerns a project to...Ch. 7 - Consider a project to produce custom door moldings...Ch. 7 - Table 7.5 contains information about au...Ch. 7 - The Advanced Tech Company has a project to design...Ch. 7 - Prob. 14PCh. 7 - Table 7.8 contains data for the installation of...Ch. 7 - The diagram in Figure 7.12 was developed for the...Ch. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - You are the project manager of the software...Ch. 7 - Jordanne King, the project manager for Webjets...Ch. 7 - Recently, you were assigned to manage a project to...Ch. 7 - In Solved Problem 2, estimate the probability that...Ch. 7 - The director of continuing education at Bluebird...Ch. 7 - Gabrielle Kramer, owner of Pet Paradise, is...Ch. 7 - The project manager of Good Public Relations...Ch. 7 - Consider the office renovation project data in...Ch. 7 - Activity B and activity K are critical activities....Ch. 7 - Prob. 2AMECh. 7 - Prob. 3AMECh. 7 - Prob. 4AMECh. 7 - Prob. 5AMECh. 7 - Assess the four categories of a risk-management...Ch. 7 - Prob. 2VCCh. 7 - Assume you are Denise Tower and have...Ch. 7 - Prob. 1CCh. 7 - Prob. 2CCh. 7 - Prob. 3CCh. 7 - Prob. 4C
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- For Activity A, B, C, D, E, F, Garrow_forwardPreceding Activity Crashed Cost per week $600 $700 $400 Activity Normal Completion Time (week) Crashed Completion time (week) A 7 5 B 12 10 A 8 2 $800 $300 $500 E C, D 5 4 F E 9 8 D. F 10 10 i. Draw the network diagram linking all the activities in a way that it shows if there exist any preceding activity/activities before starting each of the mentioned activities in the above table, ii. Showing the earliest start time, the earliest finish time, the latest start time and the latest finish time of each of the activities in the project determine the completion time of the project and the critical path. ii. Find the slack time (delay time) of each of the activities, the critical and the non-critical activities. Find the minimum possible completion time of the project by considering the crashed completion times and the minimal total cost of that crashing the project. iv. Need proper handwritten answers. Thank you!arrow_forwardAn activity on a PERT network has these time estimates: optimistic = 2, most likely = 3, and pessimistic = 6. What is its expected activity time and variance? 3.67; 1 O 4.33; 1 O 3.33; 0.44 O 4; 0.44arrow_forward
- A competitor of Kozar International Inc. has begun marketing a new, instant-developing film project. Kozar has had a similar product under study in its research and development (R&D) department but has not yet been able to begin production. Because of the competitor’s action, top managers have asked for a speedup of R&D activities so that Kozar can produce and market instant film at the earliest possible date. The predecessor information and activity time estimates in months are as follows: Draw the Project Networkarrow_forwardA competitor of Kozar International Inc. has begun marketing a new, instant-developing film project. Kozar has had a similar product under study in its research and development (R&D) department but has not yet been able to begin production. Because of the competitor’s action, top managers have asked for a speedup of R&D activities so that Kozar can produce and market instant film at the earliest possible date. The predecessor information and activity time estimates in months are as follows: Develop an activity schedule for this project using early and late start and finish times, compute activity slack time and define the critical activities.arrow_forwardA competitor of Kozar International Inc. has begun marketing a new, instant-developing film project. Kozar has had a similar product under study in its research and development (R&D) department but has not yet been able to begin production. Because of the competitor’s action, top managers have asked for a speedup of R&D activities so that Kozar can produce and market instant film at the earliest possible date. The predecessor information and activity time estimates in months are as follows: A: Draw the Project Network B: Develop an activity schedule for this project using early and late start and finish times, compute activity slack time, and define the critical activities.arrow_forward
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