MyLab Operations Management with Pearson eText -- Access Card -- for Operations Management: Processes and Supply Chains
12th Edition
ISBN: 9780134742366
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 7, Problem 3C
Summary Introduction
Interpretation: The critical path and the estimate slack with network diagram should be drawn.
Concept Introduction: Networking technique is a method for planning, programming and controlling of work in progress. It is helpful for effective management. It helps the management for decisions.
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Assignment 2:
The details of the project network are given in table below, if indirect
cost is 150 $/week determines:
1- Draw the project network, find the critical path and the project
completion time.
2- 2- Calculate the total cost of the project with a time of 24 weeks
Activity
Normal duration 4
(weeks)
Normal cost
(*1000S)
Crash duration
(weeks)
Crash cost
(*1000S)
1-2 2-3 2-4 2-5
2
4
500 100
3
2
750 300
200
2
200
5
er
4
3-6
600 700
760
6
5
830
4-8 5-7 6-9 7-8 8-9
4
7
1
200
3
140
5
300 200
4
200
2
300
2
80
2
100
1
80 100
9-10
7
600
6
670
The table below show a set of activities of an IS project,its expected completion time (ET) and preceding activities.
Activity
Preceding
Activity
Expected
Time (ET)
A
-
7
B
A
9
C
A,B
5
D
C
17
E
C
12
F
C
7
G
D,E,F
10
H
D,G
7
Construct a network diagram ,and calculate its earliest completion time (TE), latest completion time (TL) and slack time (ST).
If the activity E took 16weeks instead of 12weeks to complete ,what impact will it have on the project duration?
Consider the PERT network given below:
10
1-2-3
20
8-10-12
3-4-6
3-5-7
30
40
50
4-5-6
7-8-9
60
6-8-10
1-4-7
70
Determine the float of each activity and identify
the critical path if the scheduled completion
time for the project is 20 weeks.
Chapter 7 Solutions
MyLab Operations Management with Pearson eText -- Access Card -- for Operations Management: Processes and Supply Chains
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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- A project has the following activities. Activity Duration (Days) 1-2 1-3 4. 1-4 3. 2-5 3-5 6. 4-6 5. 5-6 7. Required:- Draw the project network. Find the critical path and total project duration. Find the Earliest Start Time, Earliest Finish Time, Latest Start Time, Latest Finish Time. Find Total Float, Head Event Slack, Free Float, Tail Event Slack and Independent Float.arrow_forwardPlease answer all parts Activity Preceding activity Activity duration A - 6 B - 3 C - 1 D A, B 2 E A, C 5 F D, E 2 G D, F 6 Draw an AON diagram based on the activities and their relationships given in the table. Find the earliest start time (ES), earliest finish time (EF), latest start time (LS), latest finish time (LF), and Slack time for each activity of the project. Determine the slack time for each path. Find the critical activities and critical path. Determine the length of the project.arrow_forwardthe manpower requirement for each activity in a construction project is given in the attached table. All activities are scheduled to start at it's earliest Start times (1) draw the project network and determine the critical path and durationarrow_forward
- A political campaign manager must coordinate several activities to be prepared for an upcoming election. The following table describes the relationships among the activities that need to be completed, as well as the estimated times. Activity Immediate Predecessors Time (Weeks) A - 4 B - 6 C A 3 D A 4 E B, C 8 F B 7 G D,E 2 H F 1 Develop a project network for this problem. Determine the ES, EF, LS, LF, and slack time for each activity. Also determine the total project completion time and the critical path(s).arrow_forwardProblem #2 Develop a network for the problem (below). Determine the total project completion time and the critical path(s). Activity Immediate Predecessors Time (Days) A - 3 B - 7 C A 4 D B 2 E C, D 5 F A 6 G E, F 3arrow_forwardRoger 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: a) Develop an AON network for this problem.b) What is the critical path?c) What is the total project completion time?d) What is the slack time for each individual activity?arrow_forward
- Given the following AOA network diagram and activity duration information, determine the Earliest Start, Earliest Finish, Latest Start and Latest Finish, and Slack for each activity. Also, indicate the critical path and the project duration. B 3 E D Activity A B с Ꭰ E F G J K L P Q R 5 R K 7 Duration (Months) 8 10 8 4 8 7 1 12 247∞∞ in 8 18 8 15 Q₂ L 9arrow_forwardGiven the following project: Activity Predecessor Normal Time (day) Normal Cost ($) Crash Time (day) Crash Cost ($) A - 4 800 2 1300 B - 10 1200 7 2400 C A 6 1100 4 1700 D A,B 7 1000 4 1600 E C 10 2000 8 3000 F C,D 5 900 - - (a) Draw the network and find the critical path duration of the project, total cost of project using normal times. (b) Calculate the maximum time reduction and crash cost-per-day (all activities may be partially crashed) for each activity. Then fill the table below. (Note: Activity “F” cannot be crashed) Activity Maximum Time Reduction (day) Cost to Crash per Period ($/day) A B C D E F (c) Find the optimal way of getting a 20-day delivery time. What is the project cost? (d) Find the optimal way of getting a 18-day delivery time. What is the project cost?arrow_forwardThe table below show a set of activities of an IS project,its expected completion time (ET) and preceding activities. Activity Preceding Activity Expected Time (ET) A - 7 B A 9 C A,B 5 D C 17 E C 12 F C 7 G D,E,F 10 H D,G 7 Draw a network diagram for the IS project shown above.,and calculate its earliest completion time (TE), latest completion time (TL) and slack time (ST). If the activity E took 16weeks instead of 12weeks to complete ,what impact will it have on the project duration?arrow_forward
- Please solve only part Darrow_forwardConsider a small project consisting of the following activities: Activity a b c d e f Immediately preceding activity - - - a, b a, c a, b, c Duration (weeks) 6 12 13 5 4 16 (a) Draw the network diagrams (AOA and AON both) for this project and determine the critical path. What is the minimum completion time for the project? (b) If it is found that some extra resources may be available so that activity c may be crashed by a maximum of 2 weeks, what will be its impact on the critical path(s) and the project completion time? (c) If instead of single time estimates, we have the following three time estimates (to ,…arrow_forward6. Given the following network, with activity times in months, determine the earliest and latest activ- ity times and slack for each activity. Indicate the critical path and the project duration.arrow_forward
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