Attributes - statistical process control, Operation Management

Assignment Help:

Attributes - Statistical Process Control

On the other hand, some processes have outputs with attributes to be controlled where counting the number of defects is more appropriate than measuring them. The outputs can be segregated into two categories (eg pass/fail or non-defective/defective). For example, in bottle production, the design requirement may stipulate a maximum allowable number of air bubbles in the glass. Bottles which have no more than this number of bubbles would be counted as non-defective items; bottles with more than this number would be counted as defective items. Returning to the example of controlling the diameters of discs, it might be decided, perhaps for reasons of economy, that it is more appropriate to gauge the diameters rather than measure them. This figure shows how this can be achieved by use of a simple go/not-go gap gauge. Conforming discs, as shown in this figure, will be small enough to enter the 'go' gap, but too large to enter the 'not go' gap. As a result the output will be segregated into countable 'pass' and 'reject' groups.

1070_Attributes - Statistical Process Control.png

Much of what follows concerns the construction and use of statistical process control charts for both categories of output. The main treatment focuses on two complementary charts, sample mean and sample range charts, for the control of variables. This is followed by accounts of three charts for the control of attributes: proportion defective, number defective and number of defects.


Related Discussions:- Attributes - statistical process control

Define customer benefits, In this writing assignment, you will create a bro...

In this writing assignment, you will create a brochure advertising your services as a data repository. Research commercial data repositories. Be sure to understand this business mo

Explain the manager would prefer ordering, A food processor uses approximat...

A food processor uses approximately 29,730 glass jars a month for its fruit juice product. Because of storage limitations, a lot size of 4,000 jars has been used. Monthly holding c

Implementation of policies in your business strategy, What processes do MNC...

What processes do MNCs need to establish in order to reduce prosecution risk? Many MNCs have decided to confront concerns about ethical behavior by developing worldwide practices t

Intermediate objective goals, Intermediate objective goals 1. Machine...

Intermediate objective goals 1. Machinery and Equipment: The objectives in the  area of machinery  and equipment  are divided into: Acquisition of machinery and  equi

Explain how do these policies and practices align, Analyze Apple, Inc.'s le...

Analyze Apple, Inc.'s legal and compliance policies and practices. How do these policies and practices align with Apple, Inc.'s legal compliance standards? If alignment is n

Explain what behaviours destroy trust, Earlier in the class, we noted that ...

Earlier in the class, we noted that communication is the glue holding organizations together. We might say that trust is the "oil" of the organization. With it, processes can opera

Procedure of production control, Procedure of Production Control 1. C...

Procedure of Production Control 1. Control  of activities : It  involves  the  release of manufacturing  orders, setting  plans  in motion  at assigned times  by means of  d

#titCAREING FOR TODDLERle.., HOW TO CARE FOR A TODDLERn #Minimum 100 words ...

HOW TO CARE FOR A TODDLERn #Minimum 100 words accepted#

Why might a probabilistic estimate, Why might a probabilistic estimate of t...

Why might a probabilistic estimate of the project completion time base solely on the variance of the critical path be misleading? Under what circumstances would it be acceptable?

Explain managers and supervisors need to have knowledge, Why do all manager...

Why do all managers and supervisors need to have knowledge and skills related to Human Resource management?

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