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

Compute productivity indices and compare rises productivity, 1. Productivit...

1. Productivity is considered by many to be the essence of operations management - suggest reasons to support this assertion.  2. Using the figures in the table, if we use 2000

Determine the dominant operations performance objectives, 1. When an organi...

1. When an organisation is stepping up production or availability of a service what are the dominant operations performance objectives?  Answer: This is a very difficult questio

What are the main points of the new science of leadership, Based on the Lon...

Based on the London interview with Margaret Wheatley, "The New Science of Leadership," write 2 paragraphs describing Wheatley's theories and perspectives of leadership and organiza

Define how supply chain management affected the organization, Reasearch a c...

Reasearch a company that uses supply chain management. Look how their organizational profitability is affected by the SCM. Incluce a descripiton of the company researched, expla

Explain five key economic variables, Identify five key economic variables t...

Identify five key economic variables that could represent major opportunities or threats to a bank in your town or city. Identify which that you believe to be most important, and d

Explain effect on a service delivery system, Why does volatility of demand ...

Why does volatility of demand have a higher effect on a service delivery system than on a manufacturing system?

Explain choosing a new piece of equipment, The following table shows the cr...

The following table shows the critical factors in a company's decision on choosing a new piece of equipment. Calculate the breakeven volume and utilization for each option and then

Linear programming, A paper mill produces two grades of paper viz, x and y....

A paper mill produces two grades of paper viz, x and y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper in

Explain what will be the company''s return on equity, Midwest packaging's R...

Midwest packaging's ROE last year was only 3%, but its management has developed a new operating plan that calls for a debt-to-asset ratio of 60%, which will result in annual intere

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