Operations Management - CD - Access
11th Edition
ISBN: 9780133408027
Author: HEIZER
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 1CS
TABLE 3.6 Southwestern University Project
1. Develop a network drawing for Hill construction and determine the critical path. How long is the project expected to take?
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Table 7.8 contains data for the installation of new equipment in a manufacturing process at Excello Corporation. Your company is responsible for the installation project. Indirect costs are $15,000 per week, and a penalty cost of $9,000 per week will be incurred by your company for every week the project is delayed beyond week 9.a. What is the shortest time duration for this project regardless of cost?b. What is the minimum total cost associated with completing the project in 9 weeks?c. What is the total time of the minimum-cost schedule?
OPERATIONS MANAGEMENT AND OPERATIONS RESEARCH
QUESTION 1
Draw the activity-on-node (AON) project network associated with the following activities for Ewoenam's consulting company project. How long should it take Ewoenam and her team to complete this project? What are the critical activities? Derive a table showing the ES, EF, LS, LF, Slack Time and Critical Path.
Activity
Immediate Predecessor(s)
Time (days)
A
-
3
B
A
4
C
A
6
D
B
6
E
B
4
F
C
4
G
D
6
H
E, F
8
QUESTION 2
Given the activities whose sequence is described by the following table, draw the appropriate activity-on-node (AON) network diagram.
Which activities are on the critical path?
What is the length of the critical path?
Activity
Immediate Predecessor(s)
Time (days)
A
-
5
B
A
2
C
A
4
D
B
5
E
B
5
F
C
5
G
E,F
2
H
D
3
I
G, H
5
1. Draw the network diagram and determine the critical path for the project below:
Chapter 3 Solutions
Operations Management - CD - Access
Ch. 3 - Give an example of a situation in which project...Ch. 3 - Explain the purpose of project organization.Ch. 3 - What are the three phases involved in the...Ch. 3 - What are some of the questions that can be...Ch. 3 - Define work breakdown structure. How is it used?Ch. 3 - What is the use of Gantt charts in project...Ch. 3 - What is the difference between an...Ch. 3 - What is the significance of the critical path?Ch. 3 - What would a project manager have to do to crash...Ch. 3 - Describe how expected activity times and variances...
Ch. 3 - Define earliest start, earliest Finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - What are dummy activities? Why are they used in...Ch. 3 - What are the three time estimates used with PERT?Ch. 3 - Would a project manager ever consider crashing a...Ch. 3 - How is the variance of the total project computed...Ch. 3 - Describe the meaning of slack, and discuss how it...Ch. 3 - How can we determine the probability that a...Ch. 3 - Name some of the widely used project management...Ch. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - 3.2 Robert Day has decided to run for a seat as...Ch. 3 - Draw the activity-on-node (AON) project network...Ch. 3 - Given the activities whose sequence is described...Ch. 3 - 3.5 Using AOA, diagram the network described below...Ch. 3 - Stephen Hall is developing a program in supply...Ch. 3 - Task time estimates for the modification of an...Ch. 3 - 3.8 The City Commission of Nashville has decided...Ch. 3 - Refer to the table in Problem 3.8. a. Draw the AON...Ch. 3 - The activities needed to build a prototype laser...Ch. 3 - Dave Fletcher (see Problem 3.10) was able to...Ch. 3 - The activities described by the following table...Ch. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The following is a table of activities associated...Ch. 3 - Assume that the activities in Problem 3.15 have...Ch. 3 - Bill Fennema, president of Fennema Hospitality,...Ch. 3 - What is the minimum cost of crashing the following...Ch. 3 - Three activities are candidates for crashing on a...Ch. 3 - Development of Version 2.0 of a particular...Ch. 3 - The estimated times and immediate predecessors for...Ch. 3 - Rich Cole Control Devices, Inc., produces...Ch. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Using PERT, Adam Munson was able to determine that...Ch. 3 - Clark Products makes pizza ovens for commercial...Ch. 3 - The Tesla 6 is a new custom-designed sports car....Ch. 3 - TABLE 3.6 Southwestern University Project 1....Ch. 3 - TABLE 3.6 Southwestern University Project 2 What...Ch. 3 - TABLE 3.6 Southwestern University Project 3. If it...Ch. 3 - Project Management at Arnold Palmer Hospital Video...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...
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- Problem #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_forwardActivity Predecessor Duration A - 6 B A 8 C A 6 D C 4 E B 6 F b.d 7 G C 5 H F,G 6 I E, H 4 Construct the network diagram Find each activity’s ES, EF, LS and LF. Calculate the slack for each activity. How long will it take to complete the projectarrow_forward3.7 Task time estimates for a production line setup project at Robert Klassen’s Ontario factory are as follows: Activity A, B,C,D,E,F,G. Time(in hours) 6.0,7.2,5.0,6.0,4.5,7.7,4.0 Immediate Predecessors -,-,A)B,C)B,C)D)E,F) a. Draw the project network using AON. b. Identify the critical path. c. What is the expected project length? d. Draw a Gantt chart for the project.arrow_forward
- 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…arrow_forward1. Activity Preceding activity Activity duration A - 6 B - 3 C B 1 D A, C 2 E B 5 F D 2 G E, F 6 Draw an AOA 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_forwardQuestions 1. Develop the network for planning and construction of the new hospital at Arnold Palmer.2. What is the critical path, and how long is the project expected to take?3. Why is the construction of this 11-story building any more complex than the construction ofan equivalent office building?arrow_forward
- Question 1: A network consists of the activities in the following list. Times are given in weeks. Activity Preceding Time A -- 8 B -- 3 C A 7 D A, B 3 E C 4 F D 6 Draw the network diagram. Calculate the ES, EF, LS, LF, and Slack for each activity. Task Early Start Early Finish Late Start Late Finish Slack A B C D E F What is project completion time? Question 2: A partially solved PERT problem is detailed in the table below. Times are given in weeks. Activity Preceding Optimistic Time Probable Time Pessimistic Time Expected Time Variance A -- 7 9 14 1.361 B A 2 2 8 0 C A 8 12 16 0 D A 3 5 10 1.361 E B 4 6 8 0 F B 6 8 10…arrow_forward- Draw the project network diagram. - What completion date would you recommend?arrow_forwardPaul Silver, owner of Sculptures International, just initiateda new art project. The following data are available for theproject:Activity Activity Time (days) Immediate Predecessor(s)A 4 —B 1 —C 3 AD 2 BE 3 C, Da. 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
- Draw project networkarrow_forwardActivity immeddiate predecessor time(Week) A - 6 B A 3 C A 7 D C 2 E B,D 4 F D 3 G E,F 7 Q1,Draw the network Q1,Draw the network. Q2,what is the critical path Q3,how many weeks will it take to complete the project. Q4, How much slack does activity B havearrow_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_forward
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