OPERATIONS AND SUPPLY CHAIN MANAGEMENT
9th Edition
ISBN: 9781119448037
Author: Russell
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 6Q
How are the mean activity times and activity variances computed in probabilistic CPM/PERT analysis?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
If the pessimistic duration of an activity is 205, the most likely duration is 160 days and the optimistic duration is 115 days, what is the expected time of the activity for PERT/CPM analysis ? What is the variance for the activity time for PERT/CPM analysis ?
Charlie is planning to open a Chinese food restaurant “Dragon Express” in Montana. The following table lists all of the activities involved in the opening of the restaurant. Charlie is able to provide his three best estimates for each activity and he wants to know when his restaurant can be open. Use POM-QM to analyze the project and answer the following questions.
Activity #
Activity name
Predecessors
Time estimates in weeks (a,m,b)
1
Select location and obtain financing
-
2,4,8
2
Rent negotiation and sign paper work
1
1,2,2
3
Cleaning and renovation of the resturant
2
4,6,8
4
Design resutrant menu
-
1,1,1
5
Order and recieve equipment and other necessities
2,4
4,8,12
6
Install equipment
3,5
1,1,1
7
Hire employees
6
1,2,2
8
Final examination
7
1,2,3
Based on the result of POM-QM, the expected completion time of the project is (type number only, no text, no decimals)
Based on the result of POM-QM, the standard deviation of the project completion time is…
Roger Ginde is developing a program in supplychain management certification for managers. Ginde haslisted a number of activities that must be completed beforea training program of this nature could be conducted. Theactivities, immediate predecessors, and times appear in theaccompanying 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?
Chapter 9 Solutions
OPERATIONS AND SUPPLY CHAIN MANAGEMENT
Ch. 9 - Why is CPM/PERT a popular and widely applied...Ch. 9 - What is the purpose of a CPM/PERT network?Ch. 9 - Why are dummy activities used in a CPM/PERT...Ch. 9 - What is the critical path, and what is its...Ch. 9 - What is slack, and how is it computed?Ch. 9 - How are the mean activity times and activity...Ch. 9 - How is total project variance determined in...Ch. 9 - What is the purpose of project crashing analysis?Ch. 9 - Describe the process of manually crashing a...Ch. 9 - Which method for determining activity time...
Ch. 9 - Explain how a Gantt chart differs from a CPM/PERT...Ch. 9 - Discuss the relationship of direct and indirect...Ch. 9 - Describe the limitations and disadvantages of...Ch. 9 - Describe the difference between activity-on-node...Ch. 9 - Identify and briefly describe the major elements...Ch. 9 - Select an everyday project you are familiar with...Ch. 9 - Prepare a WBS for a spaghetti with meatballs...Ch. 9 - Construct a Gantt chart for the project described...Ch. 9 - Construct a Gantt chart for the project described...Ch. 9 - Use the project activities that follow to...Ch. 9 - Construct a network from the information in the...Ch. 9 - For the network in Problem 9.4, determine the...Ch. 9 - Given the following network with activity times in...Ch. 9 - Given the following network with activity times in...Ch. 9 - A marketing firm is planning to conduct a survey...Ch. 9 - In one of the little-known battles of the Civil...Ch. 9 - A group of developers is building a new shopping...Ch. 9 - The management of a factory is going to erect a...Ch. 9 - Given the following network and probabilistic...Ch. 9 - The Farmers American Bank of Leesburg is planning...
Additional Business Textbook Solutions
Find more solutions based on key concepts
The schedule Dr. Barr set up worked well at the clinic where she was a resident. What are some of the reasons w...
Operations Management, Binder Ready Version: An Integrated Approach
• 4.3 Refer to Problem 4.2. Develop a forecast for years 2 through 12 using exponential smoothing with ? =.4 an...
Operations Management
Consider the sales data for Computer Success given in Problem 7. Use a 3-month weighted moving average to forec...
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
5. Answer Question 4 for some other organization, perhaps an organization where you have worked.
Operations Management: Sustainability and Supply Chain Management (12th Edition)
What is precedent, and how does it affect common law?
Business in Action
The best fits using exponential smoothing, trend analysis, and linear regression for the given data. Introducti...
Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- 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: 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_forwardConsider a project for which the following activities and time estimates in weeks apply activity To tm tp 1-2 3 5 8 1-3 2 3 5 1-5 2 3 4 2-3 1 2 5 2-6 7 8 9 3-4 1 3 6 3-5 2 4 6 4-5 1 2 4 5-6 1 2 3 Draw the project network Compute the expected time and variance for each activity iii. Compute slack for each event and find the critical path Find the length of the critical path and the project duration Approximate the probability that activity 3 – 4 will have positive slack. What is the managerial implication of that probability?arrow_forwardSuppose that the following estimates of activity times (in weeks) were provided for the network shown below: Activity Optimistic Most Probable Pessimistic A 4 6 7 B 2.5 4 5 C 5 6 7 D 4 5 9 E 6.5 7.5 9 F 2 3.5 5 G 8 9 11 H 5 6 10 What is the probability that the project will be completed. If required, round your answers to four decimal places. Within 20 weeks?---------- Within 21.5 weeks?---------- Within 23 weeks?----------arrow_forward
- 9.2. Construct a Gantt chart for the project described by the following set of activities, and indicate the project completion time and the available slack for each activity:Activity Activity Predecessor Time (Weeks)1 — 32 — 73 1 24 2 55 2 66 4 17 5 4 Present a Gantt Chart that shows the timeline from start to end. This calls for drawing an A-O-N network diagram using the information given in the Table. Present a Table of Activity versus Slack (wks) and state which specific activities are on the Critical path.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 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?arrow_forwardJabez Contractors installs network routers. Using the CPM method and in reference to the table provided comment on the expected completion time of the projectand identify the activities that neeD to be prioritised by the project manager. (Nodiagram is required) TABLE- PROJECT INSTALLATION Activity Predecessor optimistic Most Likely Pessismistic Estimated time A - 4 7 10 7 B - 2 9 10 8 C A,B 2 5 8 5 D C 16 19 28 20 E C 6 9 24 11 F E 1 7 13 7 G C 4 10 28 12 H D,F 2 5 14 6 I G 5 8 17 9 J H,I 2 5 8 5arrow_forward
- PERT-CPMYu and Mi Company is planning to computerize its accounting system. Its IT consultant has determined thefollowing activities required to complete this project together with the time estimates and precedence relationships. a. Determine the expected project completion time and the variance.b. What is the project’s critical path?c. Determine the probability that the project will be completed in 40 weeks or less.arrow_forwardWhat are the primary components of process planning in project management, and how do they contribute to the successful execution of a project?arrow_forwardReliable Garage is completing production of the J2000 kit car. The following data are available for the project:a. Draw the network diagram for the project.b. Determine the project’s critical path and duration.c. What is the slack for each activity?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY