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 own personal devices used for work, BYOD and we are reading so much...

BYOD and we are reading so much about BYOD (bring-your-own-device). Are the mobile devices you use for business owned by the company or are they your own personal devices used for

Product layout, define the following key terms in product layout; product i...

define the following key terms in product layout; product interval time, product duration, asssembly line balancing.

Assuming these are the critical attributes for perfect order, An analysis o...

An analysis of order and shipment data shows that the order fill rate is 97.1% and ABBA collected the following data concerning customer service performance: Late delivery-5 per

Explain what are the challenges associated with erp system, Research ERP sy...

Research ERP systems by visiting the ERP company provider website of your choice (i.e., SAP, Ellucian, Oracle, Peoplesoft, Microsoft, Workday, etc.) Write an essay of between 750-1

Explain about one intentional tort that occurred in sports, Research and te...

Research and tell us about one intentional tort that occurred in sports. Be specific and in-depth with your answer. Be sure to include the who, what, when, why, and where of the in

Explain tables of data that firedup will need, FiredUp, Inc is a small busi...

FiredUp, Inc is a small business owned by Curt and Julie Robards.Based in Brisbane, Australia, FiredUp manufactures and sellsFiredUp, a light-weight camping stove. Recall that Curt

Explain work in an information technology department, You are talking with ...

You are talking with another MIS 200student who is complaining about having to learn about the information systems development life -cycle (SDLC- Chapter 6), because he is not goin

Define the role of supply networks, Q. Define the role of supply networks. ...

Q. Define the role of supply networks. The role of supply networks is defined as given below: a. To assist the corporate and competitive strategy b. Speed up ordering, pa

Explain firms taking different business strategies, The value chain priorit...

The value chain priorities can be quite different for firms taking different business strategies. Create examples of value chains for three firms: one using cost leadership, anothe

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