OPERATIONS MANAGEMENT
2nd Edition
ISBN: 9781260238877
Author: CACHON
Publisher: RENT MCG
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Textbook Question
Chapter 19, Problem 1CQ
A project has four activities that take 4, 3, 6, and 7 days, respectively. What is the total completion time for the project?
- a. 3 days, because this is the minimum time
- b. 7 days, because this is the maximum time
- c. 20 days, because this is the sum of the times
- d. It is not possible to determine the total completion time from the given information.
Expert Solution & Answer
Summary Introduction
To determine: The total completion time for the project.
Answer to Problem 1CQ
D. It is not possible to determine the total completion time from the given information.
Explanation of Solution
Given information:
Four activities of a project take 4, 3, 6 and 7 days respectively.
The given scenario lacks basic information to find the completion time of the project. Details like precedence relationship is not given which makes it impossible to find the sequence of activities in which the project must be done.
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Students have asked these similar questions
You can accomplish any one of the following at an additional cost of $1500. If you will save $1000 for each day that the earliest completion time is reduced, which of the following actions should be taken, if any?
1. Reduce job 5 by two days. True or false
2. Reduce job 3 by two days. True or false
3. Reduce job 7 by two days. True or false
Needed to be solved correctly in 30 minutes and get the thumbs up please show neat and clean work
A project has 92 activities, but only 13 of them are analyzed here.
Activity P, 9 days, IP = not given
Activity W, 10 days, IP = not given
Activity S, 6 days, IP = not given
Activity A, 25 days, IP = P, W
Activity F, 24 days, IP W, S
Activity N, 21 days, IP S
Activity E, 28 days, IP = A
Activity M, 13 days, IP A, F
Activity B, 40 days, IP N
Activity H, 10 days, IP = E, M
Activity K, 14 days, IP = E, M, B
Activity D, 11 days, IP = B
Activity R, 10 days, IP = B
It has been calculated that LS(K) = 118, LS(D) = 109, LS(H) = 124, LS(R) = 116.
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What is LS(A)?
Chapter 19 Solutions
OPERATIONS MANAGEMENT
Ch. 19 - A project has four activities that take 4, 3, 6,...Ch. 19 - Consider the simple dependency matrix shown in...Ch. 19 - Consider a project with two activities that are...Ch. 19 - Prob. 4CQCh. 19 - Prob. 5CQCh. 19 - Prob. 6CQCh. 19 - Prob. 7CQCh. 19 - Prob. 8CQCh. 19 - Prob. 9CQCh. 19 - Prob. 10CQ
Ch. 19 - Consider two projects that have the same...Ch. 19 - Prob. 12CQCh. 19 - Prob. 13CQCh. 19 - Prob. 14CQCh. 19 - The key objectives of a project are given by a....Ch. 19 - Which of the following descriptions best captures...Ch. 19 - Prob. 1PACh. 19 - Prob. 2PACh. 19 - Prob. 3PACh. 19 - Prob. 4PACh. 19 - A project activity has an earliest completion time...Ch. 19 - What is the definition of the latest completion...Ch. 19 - Which of the following statements is correct with...Ch. 19 - A project consists of three tasks: A, B, and C....Ch. 19 - Prob. 9PACh. 19 - Prob. 10PACh. 19 - You manage a project with 10 activities....Ch. 19 - Which of the following activities is not part of...Ch. 19 - You have been asked by the CEO of your company to...Ch. 19 - BUILDING A HOUSE IN THREE HOURS Habitat for...Ch. 19 - BUILDING A HOUSE IN THREE HOURS Habitat for...
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- Given a project with three paths and their corresponding path lengths: A-B-C: 25 days, A-D-F: 15 days, and B-C-D-E: 20 days; which of the following statements is TRUE? * Activity B has the most slack The expected duration of the project is 60 days The earliest project completion time is 15 days The critical activities are A, B and Carrow_forwardWhat is the relationship between the earliest start time (EST) of an activity and the earliest completion time (ECT) of the activity? a. EST + Activity time = ECT b. EST × Activity time = ECTc. EST = ECT d. None of these statements is correct.arrow_forwardConsider a project to produce custom door moldings for GMC Acadia cross-over vehicles, described in Tablea. If you start the project immediately, when will it be finished?b. You are interested in completing your project as soon as possible. You have only one option. Suppose you could assign Employee A, currently assigned to activity G, to help Employee B, currently assigned to activity F. Each week that Employee A helps Employee B will result in activity G increasing its time by one week and activity F reducing its time by one week. How many weeks should Employee A work on activity F?arrow_forward
- Key: A is optimist time, M is the most likely time and B is the pessimistic time. i). Calculate the expected time for each activity ii. Draw a Gantt Chart from the same information above iii. State the critical path and the maximum number of weeks the project will take to be completed. iv. Discuss the pros and cons of using the Gantt chart as a planning and scheduling tool?arrow_forward1.What’s the maximum amount of time that activity F can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value). 2. What’s the maximum amount of time that activity D can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value). 3.What’s the maximum amount of time that activity C can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value). 4. What’s the earliest expected time, in months, to finish the project? (Whole number, no space, no commas, no decimal value).arrow_forwardNormal completion time and accelerated completion time Steps that can be taken to crash the project to the shortest time at the lowest cost. Hint: Determine each step's cost and the duration of the project at that stage.arrow_forward
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