Number of defects - control chart, Operation Management

Assignment Help:

Number of Defects - Control Chart

Sometimes the attribute of concern is the number of defects (c) in an item rather than the number of defective items in a sample: for example, the number of flaws per square metre of cloth. In this situation the concept of counting non-defects, for comparison with the number of defects found, is meaningless. Such a process typically conforms to the Poisson distribution, of mean value ¯c and standard deviation √ (¯c) and the control limits are determined as:

Warning limits = ¯c ± 1.96 √ (¯c)  

Action limits = ¯c ± 3.09 √ (¯c)


Related Discussions:- Number of defects - control chart

Explain what is your best choice using emv criterion, Dalton and Carla run ...

Dalton and Carla run a small bicycle shop called "D n C"Bicycles. They must order bicycles for the coming season. Orders for the bicycle must be placed in quantities of twenty(20).

Discuss the relationship between companies and profit motive, Discuss the r...

Discuss the relationship between these four features of capitalism. Companies, profit motive, competition and private property.

Explain the decision tree layout for the expando company, What is the Decis...

What is the Decision Tree layout for the Expando Company

Explain the term organisation structure, Explain the term organisation stru...

Explain the term organisation structure. It is the systematic arrangement of the people doing work for the organisation so as to achieve predecided goals.  This structure is

Explain the behaviors often incorporated by entrepreneurial, For years, Dav...

For years, David and Evie Wexler of The Little Guys Home Electronics had many ideas about how to improve the home electronics store in which they were working, but could not put th

Approaches to determining operations strategy, Approaches to Determining Op...

Approaches to Determining Operations Strategy This describes aspects of operations systems and performance measurement, including trade-offs between performance criteria. We

What order quantity will minimize the total inventory cost, Question: Y...

Question: You are the Operations Manager at Alien University and one of your responsibility is to manage the supplies of the University. One of your supplier has given you quan

Explain six sigma principles to health care organizations, Type two savings...

Type two savings are the least likely to occur when applying Six Sigma principles to health care organizations

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd