Statistical process control - mean and range charts, Operation Management

Assignment Help:

Statistical Process Control - Mean and Range Charts

1. SPC can be used as a means of preventing product non-conformance 

2. Causes of variability may be categorised as common causes and assignable causes 

3. Variables are features of a process output which can be measured on a continuous scale; attributes are features which do not lend themselves to measurement, but allow the output to be segregated into conforming and non-conforming items 

4. Variability can be assessed by analysing measurements to estimate the population mean and standard deviation 

5. Samples are used, to take advantage of the central tendency of sample means i.e. the means of samples cluster more closely around the population mean than do individual measurements 

6. Mean and range charts are used to monitor process variables 

7. Process capability is assessed by comparing the process variability with the product design tolerance band 

8. P-charts, np-charts and c-charts are used to monitor process attributes.


Related Discussions:- Statistical process control - mean and range charts

Fraction defective p chart - control charts for attributes, Fraction Defect...

Fraction Defective P Chart - Control Charts for Attributes This type of chart is used when it is impractical or inconvenient to maintain a constant sample size. Instead of pl

Why companies are more interested in using intangible assets, Companies are...

Companies are now more and more interested in using intangible assets and human capital as a way to gain an advantage over competitors. True False

What are routine and strategic decisions, What are routine and strategic de...

What are routine and strategic decisions? Routine decisions are of repetitive nature that do not need much analysis and evaluation, are in the context of everyday operations of

Explain efficiency advantages of a new technology, Consider this scenario: ...

Consider this scenario: You are the senior executive responsible for technology innovation for Company A. The company learns of the cost and efficiency advantages of a new technolo

Product and Service Design, What are some of the factors that cause organiz...

What are some of the factors that cause organizations to redesign their products or services?

Explain and contrast the rights of bond holders, Describe and contrast the ...

Describe and contrast the rights of bond holders and preferred stockholders. Which has the best position in a default, which one would you buy all other things being equal?

State the perpetual inventory control systems, State the Perpetual inventor...

State the Perpetual inventory control systems Continuous (Perpetual) Inventory Control Systems: Stock levels are continually monitored and reviewed within ‘real-time’ and

Explain salesperson assume in closing the sale, 1) Should Jeff go ahead and...

1) Should Jeff go ahead and place the order he knows is coming and win the contest while risking the anger of Ron Yokum? 2) How much latitude should a salesperson assume in clos

Explain artistic and creative exception to the overtime rule, 1. Grapple In...

1. Grapple Industries has 1,000 full-time and part-time employees who manufacture parts for hand tools. Company policy states that part-time employees are not eligible for overtime

How determining the productivity of his organization, Eric Johnson makes bi...

Eric Johnson makes billiard balls in his New England plant. With recent increases in his costs, he has a newfound interest in efficiency. Eric is interested in determining the prod

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