Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 22P
Rich Cole Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project undertaken by Cole requires 14 different activities. Cole’s managers would like to determine the total project completion time (in days) and those activities that lie along the critical path. The appropriate data are shown in the following table.
- a. What is the probability of being done in 53 days?
- b. What date results in a 99% probability of completion?
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Rich Cole Control Devices, Inc., producescustom-built relay devices for auto makers. The most recentproject undertaken by Cole requires 14 different activities.Cole’s managers would like to determine the total projectcompletion time (in days) and those activities that lie alongthe critical path. The appropriate data are shown in the fol-lowing table.a) What is the probability of being done in 53 days?b) What date results in a 99% probability of completion?
Coleman Rich Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project
undertaken by Rich requires 14 different activities. Rich's managers would like to determine the total project completion
time (in days) and those activities that lie along the critical path. The appropriate data are shown in the following table:
Time (days)
a m
3
7
1
2
6
4
Immediate
b Predecessor(s) Activity
Activity
A
B
C
D
E
F
G
a) The expected completion time of the project =
10
9
3
6
11
8 17
7
3
3
5
1 7 8
A
A
B, C
D
D
H
I
J
K
L
M
N
Time (days)
a
5
1
3
6
3
1
6
m
5
5
6
8
4
Immediate
b Predecessor(s)
6
10
7
11
6
3
3
8 11
E, F
G, H
I
J
K
L, M
days (round your response to two decimal places).
Chapter 3 Solutions
Operations Management
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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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
- An electrical engineer wants to finish his new device production project within 47 days to meet his contract deadline. Explain what he should do to meet his plan . The project information is listed below. Please ignore the indirect cost.arrow_forwardI'm unable to answer the following question? What is the total cost of crashing the project from its current duration down to 13 weeks?arrow_forwardIMPORTANT NOTE: All Project Management Questions are from the same Project. You only need to solve the project one time. The CEO of Carol O'Lights Manufacturing, produces custom-built relay devices for auto makers. The most recent project undertaken by Ms. O'Lights requires 11 different activities. The activities necessary to build an experimental relay model and related data are given in the following table. What is the Early Start on Activity G?arrow_forward
- The following represents a project that should be scheduled using CPM: ACTIVITY A B C D E F G H IMMEDIATE PREDECESSORS A A B C, D D, E F,G b. What is the critical path? ⒸA-D-G-H OB-E-G-H ⒸA-C-F-H A-D-F-H Probability TIMES (DAYS) b Project completion time a 1 1 2 1 1 3 1 2 m 2 2 2 8 2 4 3 3 6 9 11 9 3 c. What is the expected project completion time? Note: Do not round intermediate calculations. Round your answer to 3 decimal places. 11 11 11 X Answer is not complete. days d. What is the probability of completing this project within 19 days? Note: Use Excel's NORM.S.DIST function to find the correct probability for your computed Z value. Do not round intermediate calculations. Round Z value to 2 decimal places and final answer to 4 decimal places.arrow_forwardDevelopment of Version 2.0 of a particular accounting software product is being considered by Jose Noguera's technology firm in Baton Rouge. The activities necessary for the completion of this project are listed in the following table: Normal Crash Activity Time (weeks) Time (weeks) A B с D E F G 4 2 3 8 6 3 4 3 1 3 4 3 2 2 a) Based on the given information regarding the activities for the project, the project length = Normal Cost $2,000 $2,300 $600 $2,300 $900 $3,200 $1,500 weeks. Total Cost with Crashing Immediate Predecessor(s) $2,650 $2,900 $600 $2,600 $1,200 $4,400 $1,900 A B C D, Earrow_forwardEarned value analysis is the project management tool that is used to measure project progress. You are a project manager in company XYZ that responsible to handling the packaging machine project with the total cost budgeting is RM100,000. There are including RM24,000 (Design), RM60,000 (build) and RM16,000 (install & test). The information regarding on the project progress development in weeks 8 as shown in Table 2 below: No Type Cumulative Budgeted Cost (CBC) 2 Cumulative Actual Cost (CAC) Cumulative Earned Value (CEV) 1 3 TOTAL RM i. ii. iii. iv. 64,000 68,000 54,000 100,000 Percentage 64.0 Cost performance Index (CPI) [hint: CEV/CAC] Cost variance (VC) [hint: CEV-CAC] 68.0 54.0 a) Based on question 2(a), calculate and elaborate the various of indicators of cost performance for this project based on the respective below: 100.0 Forecasted cost of completion (FCAC) with action taken [hint: TBC/CPI] Forecasted cost of completion (FCAC) without any action taken [hint: CAC + [TBC-CEV]arrow_forward
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