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

Carl thor - performance measures, Carl Thor - Performance Measures Car...

Carl Thor - Performance Measures Carl Thor (1994) highlights the 'family of measures' concept and the alignment of measures across a company. He describes five measurement cat

Explain the managerial process, The Managerial Process text. Given the proj...

The Managerial Process text. Given the project network provided, compute the early, late, and slack times for the project. Share your calculations and explain how you came up with

Explain how can differences in the cultures of two countries, How can diffe...

How can differences in the cultures of two countries create ethical issues in our business operations? A key to answering this question is to first understand culture, particularly

Order losers - operations strategy, Order Losers - Operations Strategy ...

Order Losers - Operations Strategy These are characteristics which denote poor performance in the operations management function and can cause losses in current or future busi

Explain technical proficiency has never been enough, Evaluate the following...

Evaluate the following statement: Technical proficiency has never been enough for professionals to grow beyond the staff level. Do you agree or disagree, and why? In your own words

The study of global business is relevant to work company, Discuss the follo...

Discuss the following theory: The study of global business is relevant if you work or plan to work in a large multinational company, but it has little or no significance for indivi

Explain cost management a strategic emphasis, Do you have the test associat...

Do you have the test associated with the book Cost Management A strategic Emphasis, 5th edition

Explain re-negotiate a new relationship, You are very annoyed by one of you...

You are very annoyed by one of your third-party service providers (3PL) and want to confront him and re-negotiate a new relationship. How would you go about this important task?

System classification beneficial for operations managers, 1. Referring to t...

1. Referring to the figure, in which category would you place: a chemist shop; Burger King; Direct Line Insurance; Cable Vision; Motorola; a chiropodist; QVC television; Smith-Klin

Explain minimize the store''s total expected cost, Solve the following prob...

Solve the following problem for the optimal number of clerks: There are approximately 300 customers shopping in Fackert Department Store in Mexico City between 9 a.m. and 5 p.m.

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