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

Location strategy, Location Strategy It is difficult  to set  down ru...

Location Strategy It is difficult  to set  down rules whereby the problem  of facilities  location  can be  programmed but  there  are a number of factors which  should be  c

C) Role of computers in Production/Operations Management, c) Role of comput...

c) Role of computers in Production/Operations Management

Describe the steps of the collaboration process, 1. State the primary reaso...

1. State the primary reasons for the organizations existence from an analysis of the mission, vision, values, and goals. & Intro. 2. Analyze the reason for the type of organizat

Explain local company to custom-produce your product line, You are the new ...

You are the new owner of a local ice cream store located in a strip mall adjacent to a university campus. You've decided to sell 20 flavours of ice cream and are contemplating whet

Describe what is the chocolate raw material safety stock, Christian runs a ...

Christian runs a small chocolate shop. He manages his chocolate raw material using a periodic review system. Daily demand has a mean of 100 pounds and standard deviation of 10 poun

Determine factors creating competitive strategy of business, Determine the ...

Determine the factors that should be evaluated when creating competitive strategy of a business. For each factor, indicate its significance. Provide support for your answer. Evalua

Performance & productivity measurement -theory of constraint, Performance &...

Performance & Productivity Measurement -Theory of Constraint Traditional financial measures of performance have been criticised by Kaplan and Norton (1992) who voiced thei

Explain profit sharing plans have no criticism, All of the following statem...

All of the following statements about profit sharing are true/ except/1.profit sharing plan reward staff based on organization profits/2.profit reward a person according to measure

Define the worshiping of a deity is required, the worshiping of a deity is ...

the worshiping of a deity is required in order for a belief to be considered a religion.

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