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

Calculate the expected value of perfect information, Clay Why bark, a soft-...

Clay Why bark, a soft-drink vendor at Hard Rock Cafe%u2019s annual Rockfest, created a table of conditional values for the various alternatives (stocking decision) and states of na

Explain research and industrial engineering, What future for Operations ...

What future for Operations Research/Industrial Engineering? In your own words, answer the following questions in an essay: What is this presentation about? What does th

Define elements of finagle a bagels operating system, Now, please answer th...

Now, please answer the question regarding operations management. How would you describe the elements of Finagle a Bagels operating system?

What are the rules of joint venture, Windy City Balloon Port ran a balloon ...

Windy City Balloon Port ran a balloon launching facility in Illinois, offering sightseeing flights in hot-air and helium balloons owned by third parties. Windy City sold tickets fo

Explain the six steps in a marketing research process, Discuss the six step...

Discuss the six steps in a marketing research process

Explain quality of work life, Why are unions exploring new collaboration so...

Why are unions exploring new collaboration solutions in the face of economic/work adversity, and how did Saturn's ambitious Quality of Work Life (QWL) program address these factors

Develop a management research, You have been approached by the editor of Ge...

You have been approached by the editor of Gentlemen's Magazine to carry out a research study. The magazine has been unsuccessful in attracting show manufacturers as advertisers. Wh

Explain change forces are adapting and sustaining, Which of the following b...

Which of the following best shows forces for change vs. forces for stability? Change forces are: adapting, sustaining, and predicting; whereas stability forces are: bureaucracy, tr

Explain ddi communications model, What`s the use of DDI communications mode...

What`s the use of DDI communications model most typically used by and for 1st level supervisors?

Explain vision statement and a mission statement, Should organizations have...

Should organizations have both a vision statement and a mission statement? If you were to lead an organization and you could have only one, a mission or vision statement, which wou

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