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

Articulate a strategy for disseminating product information, The Swiss phar...

The Swiss pharmaceutical global corporation Hoffman-La Roche has made a major breakthrough in the relief of a serious disabling disease that affects 3 percent of the world's popula

Success of change initiatives is why many initiatives fail, Failure to anti...

Failure to anticipate and mitigate circumstances that might impede the success of change initiatives is why so many initiatives fail. From a business managers perspective, what doe

Discuss whether a company must have balance set of managers, Discuss whethe...

Discuss whether a company should have a balance set of managers of equal diversity background as employees. Support your answer.

Explain physical well-being of a manager of co-worker, All of the following...

All of the following are examples of protected opposition except: a. Threatening to file a formal complaint alleging discrimination b. Refusing to obey an order because of a reason

Compute the estimated sample size needed, Practical Application Scenario 2 ...

Practical Application Scenario 2 To complete this scenario, use the Sample Size Estimator file provided in the Resources. The third shift at Microsoft's Windows' security uni

Compute the probability, The probability Mary will receive an A in a class ...

The probability Mary will receive an A in a class is 0.51. Assuming independence, if she is taking 5 classes this semester, calculate the probability she will receive exactly 3 A's

Explain what is the workstation cycle time, 1. Some tasks and the order in ...

1. Some tasks and the order in which they must be performed according to their assembly requirements. These are to be combined into workstations to create an assembly line. The

Explain e-activity evaluate the lessons, From the e-Activity, evaluate the ...

From the e-Activity, evaluate the lessons learned in this chapter to determine which single lesson would be most beneficial to the company you researched. Provide specific examples

Locating production and service facilities, if you expand your existing com...

if you expand your existing company by opening a new divition in a foreign country, shouldthe new divistion be staffed by local personnel or by personnel imported from the parent o

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