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

I need to describe forecasting, I need to explain forecasting, also how it ...

I need to explain forecasting, also how it is performed at St. Arnold's Brewery (Houston, TX) also what forecasting error is and if there has been any in the past.

Explain whether or not the usa patriot act violates, Discuss whether or not...

Discuss whether or not the USA PATRIOT Act violates the privacy rights of U.S. citizens. In your response, be sure to include a description of which aspects of the Act you do or do

Define in haifa israel its illegal to take what to the beach, In Haifa Isra...

In Haifa Israel its illegal to take what to the beach

Explain american multinational business in a foreign country, What requirem...

What requirements should be recommended to represent an American multinational business in a foreign country?

Behaviour while a person ethic is somewhat questionable, Which of the follo...

Which of the following statement is correct/1. Deep acting and surface acting are two terms reflecting ways of behaviour when a person ethic is somewhat questionable/2. Deep acting

Explain the planning function of management, Need help with paper for this ...

Need help with paper for this class? Attain faculty approval as you select one of the following organizations: • Global Crossing • Tyco • WorldC

Describe switch read in order to find the mac address, What part of a packe...

What part of a packet does a switch read in order to find the MAC address?

Function of dispatching, Function of Dispatching Under dispatching the ...

Function of Dispatching Under dispatching the following functions are included: 1. Assignment of work to individual machines or work places and men, 2. Movement of materi

State the term shamrock organisation, State the term Shamrock Organisation?...

State the term Shamrock Organisation? Shamrock Organisation: According to Charles Handy the 'Shamrock Organisation' used to apply a model to the workforce flexibility. Th

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