PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB
PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB
11th Edition
ISBN: 9780135226742
Author: HEIZER
Publisher: PEARSON
bartleby

Concept explainers

Question
Book Icon
Chapter 6.S, Problem 8P

a)

Summary Introduction

To determine: The value of control limits.

Introduction: Control charts used to determine whether the process is under control or not. Attributes and variables are the factors under the control charts.

a)

Expert Solution
Check Mark

Answer to Problem 8P

The value of control limits is 16.08 and 15.92.

Explanation of Solution

Given information:

The following information is given:

PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB, Chapter 6.S, Problem 8P , additional homework tip  1

The mean of the sample means x¯¯=16

Calculate (σx¯) the standard deviation of the means:

It is given that the population mean x¯¯=16 and the population standard deviation σ=0.12 using the below formula:

σx¯=σn

Here, the sample size n=9

Substitute the values of σ=0.12 and n=9 in the above formula to obtain the value of σx¯

σx¯=σn=0.129=0.123=0.04

Hence, the standard deviation of the means σx¯=0.04

Derive the values of upper control limits (UCL) and lower control limits (LCL):

Calculate UCL and LCL using the below formulae:

UCL=x¯¯+z×σx¯

LCL=x¯¯z×σx¯

Here,

The value of z=2 , population mean x¯¯=16 and the standard deviation of the means σx¯=0.04 .

Compute the value of UCL by substituting in UCL formula, the values of x¯¯=16 , σx¯=0.04 and z=2

UCL=x¯¯+z×σx¯=16+2×(0.04)=16+0.08=16.08

Hence, the upper control limit is UCL=16.08lb

Compute the value of LCL by substituting in LCL formula, the values of x¯¯=16 , σx¯=0.04 and z=2

LCL=x¯¯z×σx¯=162×(0.04)=160.08=15.92

Hence, the lower control limit is LCL=15.92lb

b)

Summary Introduction

To determine: The value of control limits.

Introduction: Control charts used to determine whether the process is under control or not. Attributes and variables are the factors under the control charts.

b)

Expert Solution
Check Mark

Answer to Problem 8P

The value of control limits is 16.12 and 15.88.

Explanation of Solution

Given information:

The following information is given:

PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB, Chapter 6.S, Problem 8P , additional homework tip  2

The mean of the sample means x¯¯=16

Calculate (σx¯) the standard deviation of the means:

It is given that the population mean x¯¯=16 and the population standard deviation σ=0.12 using the below formula:

σx¯=σn

Here, the sample size n=9

Substitute the values of σ=0.12 and n=9 in the above formula to obtain the value of σx¯

σx¯=σn=0.129=0.123=0.04

Hence, the standard deviation of the means σx¯=0.04

Derive the values of upper control limits (UCL) and lower control limits (LCL):

Calculate UCL and LCL using the below formulae:

UCL=x¯¯+z×σx¯

LCL=x¯¯z×σx¯

Here,

The value of z=3 , population mean x¯¯=16 and the standard deviation of the means σx¯=0.04 .

Compute the value of UCL by substituting in UCL formula, the values of x¯¯=16 , σx¯=0.04 and z=3

UCL=x¯¯+z×σx¯=16+3×(0.04)=16+0.12=16.12

Hence, the upper control limit is UCL=16.12lb

Compute the value of LCL by substituting in LCL formula, the values of x¯¯=16 , σx¯=0.04 and z=3

LCL=x¯¯z×σx¯=162×(0.04)=160.12=15.88

Hence, the lower control limit is LCL=15.88lb

The control limits become wider when three standard deviations are used instead of two standard deviations. The process is now allowed wider latitude in terms of natural variations.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Do the inherent differences between private and public sector objectives—profit versus publicgood—render private sector category management practices unsuitable for public sectorpurchasing, where open tendering is the norm?You have now undergone the Category Management classes and your superiors have requestedfor your input on how to integrate some of the learnings into the public sector policy. Discuss and elaborate what are the activities and governance you would introduce in yourrecommendations without violating the principle of transparency and accountability withinyour organisation. This is based on Singapore context. Pls provide a draft with explanation, examples and useful links for learning purposes. Citations will be good too. This is a module in SUSS called category management and supplier evaluation
provide scholarly answers for what risk was associated with the Citibank bank loosing 50 million in August 2020
Conclusion: The report recommendations and broad conclusion to the essay. TOTAL 5 100

Chapter 6 Solutions

PRIN.OF OPERATIONS MANAGEMENT-MYOMLAB

Ch. 6.S - Prob. 11DQCh. 6.S - Prob. 12DQCh. 6.S - Prob. 13DQCh. 6.S - Prob. 14DQCh. 6.S - Prob. 15DQCh. 6.S - Prob. 16DQCh. 6.S - Prob. 17DQCh. 6.S - Prob. 18DQCh. 6.S - Prob. 19DQCh. 6.S - Prob. 1PCh. 6.S - Prob. 2PCh. 6.S - Prob. 3PCh. 6.S - Prob. 4PCh. 6.S - Prob. 5PCh. 6.S - Prob. 6PCh. 6.S - Prob. 7PCh. 6.S - Prob. 8PCh. 6.S - Prob. 9PCh. 6.S - Prob. 10PCh. 6.S - Prob. 11PCh. 6.S - Prob. 12PCh. 6.S - Prob. 13PCh. 6.S - Prob. 14PCh. 6.S - Prob. 15PCh. 6.S - Prob. 16PCh. 6.S - Prob. 17PCh. 6.S - Prob. 18PCh. 6.S - Prob. 19PCh. 6.S - Prob. 20PCh. 6.S - Prob. 21PCh. 6.S - Prob. 22PCh. 6.S - Prob. 23PCh. 6.S - Prob. 24PCh. 6.S - Prob. 25PCh. 6.S - Prob. 28PCh. 6.S - Prob. 29PCh. 6.S - Prob. 30PCh. 6.S - Prob. 32PCh. 6.S - Prob. 33PCh. 6.S - Prob. 34PCh. 6.S - Prob. 35PCh. 6.S - Prob. 36PCh. 6.S - Prob. 37PCh. 6.S - Prob. 39PCh. 6.S - Prob. 40PCh. 6.S - Prob. 41PCh. 6.S - Prob. 42PCh. 6.S - Prob. 43PCh. 6.S - Prob. 44PCh. 6.S - Prob. 45PCh. 6.S - Prob. 46PCh. 6.S - Prob. 48PCh. 6.S - Prob. 49PCh. 6.S - Prob. 50PCh. 6.S - Prob. 51PCh. 6.S - Prob. 52PCh. 6.S - Prob. 53PCh. 6.S - Prob. 54PCh. 6.S - Prob. 55PCh. 6.S - Prob. 1CSCh. 6.S - Prob. 2CSCh. 6.S - Prob. 1.1VCCh. 6.S - Prob. 1.2VCCh. 6.S - Prob. 1.3VCCh. 6.S - Prob. 2.1VCCh. 6.S - Prob. 2.2VCCh. 6.S - Prob. 2.3VCCh. 6.S - Prob. 2.4VCCh. 6 - Prob. 1EDCh. 6 - Prob. 1DQCh. 6 - Prob. 2DQCh. 6 - Prob. 3DQCh. 6 - Prob. 4DQCh. 6 - Prob. 5DQCh. 6 - Prob. 6DQCh. 6 - Prob. 7DQCh. 6 - Prob. 8DQCh. 6 - Prob. 9DQCh. 6 - Prob. 10DQCh. 6 - Prob. 11DQCh. 6 - Prob. 12DQCh. 6 - Prob. 13DQCh. 6 - Prob. 14DQCh. 6 - Prob. 15DQCh. 6 - Prob. 16DQCh. 6 - Prob. 17DQCh. 6 - Prob. 18DQCh. 6 - An avant-garde clothing manufacturer runs a series...Ch. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Kathleen McFaddens restaurant in Boston has...Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10PCh. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 1CSCh. 6 - Prob. 2CSCh. 6 - Prob. 3CSCh. 6 - Prob. 1.1VCCh. 6 - Prob. 1.2VCCh. 6 - Prob. 1.3VCCh. 6 - Prob. 1.4VCCh. 6 - Prob. 2.1VCCh. 6 - Prob. 2.2VCCh. 6 - Prob. 2.3VCCh. 6 - Prob. 2.4VCCh. 6 - Prob. 3.1VCCh. 6 - Prob. 3.2VCCh. 6 - Prob. 3.3VCCh. 6 - Prob. 3.4VCCh. 6 - Prob. 3.5VC
Knowledge Booster
Background pattern image
Operations Management
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Text book image
Principles of Management
Management
ISBN:9780998625768
Author:OpenStax
Publisher:OpenStax College