Control chart - sample mean chart & sample range chart, Operation Management

Assignment Help:

Control Chart - Sample Mean Chart & Sample Range Chart

As sample values are progressively plotted on the charts, they are examined for patterns which may be tested against a set of rules-of- thumb, as shown in the figure overleaf. This figure shows some examples of limits being exceeded. For example, if a single sample means breaches an action limit, the probability (1-in- 1000) that this would be obtained from a stable process is so low it is deemed to be more likely that the process has changed. The process should be stopped and investigated. If within any sequence of 10 plots you find one above the upper warning limit and one below the lower warning limit, this is statistically so unlikely that you should stop the process to investigate. Similarly, the occurrence of two consecutive sample means breaching a warning limit is so unlikely that, again, the process would be stopped and investigated.

895_Control Chart - Sample Mean Chart & Sample Range Chart.png


Related Discussions:- Control chart - sample mean chart & sample range chart

Distribution among between affect international businesses, How do differen...

How do differences in income levels and income distribution among nations affect international businesses?

Explain stakeholder analysis, Stakeholder analysis is important in risk ass...

Stakeholder analysis is important in risk assessments for most activities is not important in risk assessments for most activities is usually undertaken at the end of the planning

Explain scope of a project, Illustrate how to effectively and efficiently r...

Illustrate how to effectively and efficiently report on the scope of a project to the different stakeholder groups • Use figures and tables to provide examples • Show calcula

Describe why the creation and maintenance of an ethical, Explain why the cr...

Explain why the creation and maintenance of an ethical workplace is a challenge for business and HR specifically? CITED/REFERENCE IF ANY.

Do you think that there is too much advertising out there, Do you believe t...

Do you believe that there is too much advertising out there? Do you think there should be a limit to advertising? Explain.

Explain what is meant by uniformly distributed, What is meant when a variab...

What is meant when a variable, like the possible selling prices for a new item like a mouse pad, is said to be uniformly distributed?

Describe the several components of inventory holding cost, Question: (a...

Question: (a) (i) What are the assumptions to be respected while deriving the Economic Order Quantity formula. (ii) Describe the several components of inventory holding c

Assignment, propose process improvement, and justify your reasons for the i...

propose process improvement, and justify your reasons for the improvements, to the flowchart for answering calls

Explain cost-reimbursement contracts for the government, Find an example of...

Find an example of a project in which one of these two types was used in a real federal contract. These two types refers to contrast fixed-price and cost-reimbursement contracts fo

Explain michael porter''s competitive forces model, Discuss Michael Porter'...

Discuss Michael Porter's Competitive Forces Model. Provide examples to illustrate your points.

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