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

Explain why is forecasting important in organizations, Why is forecasting i...

Why is forecasting important in organizations, especially as related to understanding the relevant time horizon to develop a forecast against? What are some examples from industry?

Explain all four geographic markets during years, The market for branded at...

The market for branded athletic footwear is projected to grow a 7-9% annually worldwide during the Year 11-Year 20 period. b 9-11% annually in Latin America and the Asia-Paci

Explain the role of a pilot project in information systems, Petrie's Electr...

Petrie's Electronics Case, Chapter 10, Questions 1%u20135 (page 359). 4. What is the role of a pilot project in information systems analysis? Why do you think the Petrie%u2019s

Factors determining production control, Factors Determining Production Cont...

Factors Determining Production Control 1. Nature of Production: In job oriented manufacturing products and operations designed for some particular order which may or may not b

How to formulate a linear programming model, George Johnson recently inheri...

George Johnson recently inherited a large sum of money; he wants to use a portion of this money to set up a trust fund for his two children. The trust fund has two investment optio

Develop your major negotiation temperaments, Today, you have a meeting with...

Today, you have a meeting with one of the Humanitarian workers (Latisha Jones) concerning raising awareness for drunk driving in your local community. This is the fifth time that y

Explain strategic quality management process, Why is the deployment phase o...

Why is the deployment phase of the strategic quality management process crucial to the achievement of an organization's vision? What are the roles of feedback in the strategic qual

MBA, What do you understand by “line balancing”? What happens if balance do...

What do you understand by “line balancing”? What happens if balance doesn’t exist?n..

Explain free speech or false advertising, "Free Speech or False Advertising...

"Free Speech or False Advertising" Please respond to the following: •From the case study, determine if Nike engaged in commercial speech, or if its statements were political or soc

Explain terms labor, The Stone Company produces three sizes of window fans:...

The Stone Company produces three sizes of window fans: small, medium, and large. The manager has formulated an LP model for fan production: maximize 6 x1 + 8 x2 + 5 x3 (profit) sub

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