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

Explain spread harmful rumours gossips uses bad language, Sara spread harmf...

Sara spread harmful rumours gossips uses bad language and lack civility in relationship while at work/ in which of the following is sarah engaging in/1.proert deviance/ 2 productio

Describe turnaround at the preston plant, CASE STUDY; Turnaround at the Pre...

CASE STUDY; Turnaround at the Preston Plant SPC is an operational level technique of ensuring quality conformance. How many of the benefits of bringing the plant under control wou

Rapid innovation - customers needs for a product, Rapid innovation - Custom...

Rapid innovation - Customers Needs for a Product The readiness with which the operations system can generate new products and services, and get them to market quickly. A study

Explain functions of marketing management, Explain functions of marketing m...

Explain functions of marketing management. Functions of Marketing Management: The broad functions of marketing management includes as in following : (i) Marketing Research

Explain milestones important when implementing major change, Why is the cel...

Why is the celebration of milestones important when implementing major change? Explain your position

Find the probability of event, The probability of Event 1 is P and the prob...

The probability of Event 1 is P and the probability of Event 2 is (1-p),for what values of P would you choose A?B?C? Values in the table are payoffs. Choice /Event Event 1 Event2

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?

Describe the history of welfare reform, Discuss the history of welfare refo...

Discuss the history of welfare reform. Discuss some of the historical aspects and your opinion about how these changes were implemented and whether or not the changes were effectiv

Describe porter''s five forces model, You have been working for some time a...

You have been working for some time at UMUC Pizza, a pizza restaurant located near the UMUC campus. The owner, Bill, is very interested in expanding his successful business. He h

Monte carlo, explain the monte carlo simulation

explain the monte carlo simulation

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