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

Explain obstacles employees faced with pension plan funding, What are four ...

What are four safeguards that the ERISA legislation specified to address the many obstacles employees faced with pension plan funding? How did the Pension Protection Act add additi

Explain wastewater treatment plant, Visit the site: Wheaton, IL Sanitary Di...

Visit the site: Wheaton, IL Sanitary District. This tour of a wastewater treatment plant is an example of a high-volume, public project. • How is capacity defined at a wastewate

Explain implement each function of management, Can someone PLEASE help get ...

Can someone PLEASE help get me started... Theories of management originated in the early 1900's. They have influenced how we view management today. By Wednesday, February 20, 2013,

A firm plans to start production of a new small appliance, A firm plans to ...

A firm plans to begin production of a new small appliance. The manager must decide whether to purchase the motors for the appliance from a vendor at $7 each or to produce them in-h

Explain performance appraisal, Explain Performance Appraisal. It is a s...

Explain Performance Appraisal. It is a systematic and impartial assessment of an employee's performance on the assigned job, along with a view to discovering how well or worse

Define why is it deemed necessary to protect the environment, Why is it dee...

Why is it deemed necessary to protect the environment? What does it mean to society? To business? To the individual? To future populations?

Explain situational approaches to leadership integrate goals, How can situa...

How can situational approaches to leadership integrate goals to increase the effectiveness of your organization?

Explain terminals and arrive at a message concentrator, Messages are transm...

Messages are transmitted from low speed terminals and arrive at a message concentrator at a Poisson rate of 600/hr. They are held in a buffer until a hi-speed trunk line is free to

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