Pearson eText Principles of Operations Management: Sustainability and Supply Chain Management -- Instant Access (Pearson+)
11th Edition
ISBN: 9780135639221
Author: Jay Heizer, Barry Render
Publisher: PEARSON+
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Chapter 3, Problem 21P
a)
Summary Introduction
To calculate: The probability of completing the work in 53 days.
b)
Summary Introduction
To calculate: The date that results in a 99% probability of completion.
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Students have asked these similar questions
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).
I'm unable to answer the following question?
What is the total cost of crashing the project from its current duration down to 13 weeks?
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.
Chapter 3 Solutions
Pearson eText Principles of Operations Management: Sustainability and Supply Chain Management -- Instant Access (Pearson+)
Ch. 3 - Ethical Dilemma Two examples of massively...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 - Prob. 10DQCh. 3 - Define earliest start, earliest finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - Prob. 13DQCh. 3 - Prob. 14DQCh. 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 - What is the difference between the waterfall...Ch. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - James Lawson has decided to run for a seat as...Ch. 3 - Prob. 3PCh. 3 - Refer to the table in Problem 3.3. a) Draw the AON...Ch. 3 - Draw the activity-on-node (AON) project network...Ch. 3 - Given the activities whose sequence is described...Ch. 3 - Prob. 7PCh. 3 - Roger Ginde is developing a program in supply...Ch. 3 - Prob. 9PCh. 3 - The activities described by the following table...Ch. 3 - Prob. 11PCh. 3 - The activities needed to build a prototype laser...Ch. 3 - Prob. 13PCh. 3 - Dave Fletcher (sec Problem 3.12) was able to...Ch. 3 - Ross Hopkins, president of Hopkins Hospitality,...Ch. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The estimated times and immediate predecessors for...Ch. 3 - Prob. 21PCh. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Development of Version 2.0 of a particular...Ch. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 1.1VCCh. 3 - Prob. 1.2VCCh. 3 - Project Management at Arnold Palmer Hospital The...Ch. 3 - Prob. 1.4VCCh. 3 - Managing Hard Rocks Rockfest At the Hard Rock...Ch. 3 - Managing Hard Rocks Rockfest At the Hard Rock...Ch. 3 - Managing Hard Rocks Rockfest At the Hard Rock...Ch. 3 - Managing Hard Rocks Rockfest At the Hard Rock...
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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
- I need solve this question in project managerarrow_forwardyou can solve it on table and i will copy itarrow_forwardColeman 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: Activity A B с D E F G a) The expected completion time of the project = a 4 1 6 5 1 2 1 Time (days) m 6 2 6 8 9 3 7 b 7 3 6 11 18 6 8 Immediate Predecessor(s) A A B, C D D Activity a H 4 I 1 J 2 K 8 2 1 6 M N days (round your response to two decimal places). Time (days) = m 4 6 5 9 4 2 8 b 6 8 7 11 6 3 10 Immediate Predecessor(s) E, F G, H K L, M The activities that represent the project's critical path are b) If the time to complete the activities on the critical path is normally distributed, then the probability that the critical path will be finished in 53 days or less = decimal places). c) Using the standard normal table, the…arrow_forward
- General Foundry’s project crashing data are shown below. Crash this project to 13 weeks using CPM. What is the final time for each activity after crashing? What is the crash cost per week per activity and the total cost of crashing? TIME (WEEKS) COST ($) ACTIVITY IMMEDIATE PREDECESSORS NORMAL CRASH NORMAL CRASH A — 2 1 22,000 23,000 B — 3 1 30,000 34,000 C A 2 1 26,000 27,000 D B 3 2 48,000 49,000 E C 4 2 56,000 58,000 F C 3 2 30,000 30,500 G D, E 5 2 80,000 83,000 H F, G 2 1 16,000 19,000arrow_forwardA solved PERT problem is detailed in the table below. The expected time and variance values and the critical activities are given in the table below. Answer the following questions by filling the blanks (WRITE YOUR ANSWERS TO 2 DECIMAL PLACES. DO NOT ROUND UP OR DOWN): a. The expected project completion time for this problem is and the standard deviation is . b. There is a 0.95 probability that the project will be completed by weeks. Activity Expected time Variance Critical? A 10 0.36 Yes B 7 0.11 No C 7 0.25 No D 3 0.48 Yes E 5 1.60 Yes F 7 0.69 No G 2 3.69 Yesarrow_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_forward
- 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?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 3 1 3 4 3 2 2 a) Based on the given information regarding the activities for the project, the project length с D E F G 2 8 6 Normal Cost $2,100 $2,300 $500 $2,400 $900 $3,400 $1,600 weeks Total Cost with Crashing Immediate Predecessor(s) $2,700 $3,000 $500 $2,700 $1,350 $4,900 $2,200 С D, Earrow_forwardAn 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_forward
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