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 developing the project plan, In terms of developing the project pla...

In terms of developing the project plan, identify which, if any, of the project steps are more integral to the project plan than any others. Support your response

Depict the precedence diagram, An assembly line is to be designed to operat...

An assembly line is to be designed to operate 7 1/2 hours per day and supply a steady demand of 300 units per day. Here are the tasks and their performance times: PRECEDING Perf

Calculate a tracking signal for months, The classified department of a mont...

The classified department of a monthly magazine has use a combination of qualitative and quantitative methods to forecast sales of advertising space. Results over a 20 month period

How to develop an aggregate plan for product line, DAT, Inc, company needs ...

DAT, Inc, company needs to develop an aggregate plan for its product line. Relevant data are Production time: 1 hour per unit Average labor cost: $10/hour Workweek: 5 d

Thus if a budget is prepared it can only be a crude estimate, Frequently, a...

Frequently, at the time the project charter is prepared there is only a very general understanding of the project, so if a budget is prepared it can only be a crude estimate.

What factors would you consider in promotions distribution c, As the Market...

As the Marketing Manager for Proctor and Gambles Pet Nutrition and Care division you have been asked to consider launching a new dog food product in Mexico. What factors would you

Resource allocation and Contingency planning, What are those topics all abo...

What are those topics all about? Can you give me a summary of that in a clear and understandable explanation. Thank you so much!

Explain analysis of the social, Perform an analysis of the social / demogra...

Perform an analysis of the social / demographic, technological, economic, environmental / geographic, and political/legal / governmental segments to understand the general environm

Explain what is nominal damage, What is the difference between compensatory...

What is the difference between compensatory damages and consequential damages? Provide at least one relevant example of each that was not included in your textbook. What is nominal

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

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