1 / 14

Statistical Process Control

Statistical Process Control. Overview. Definition of Statistical Process Control Common causes and assignable causes of variation Control charts Type I and Type II Errors R, x, p, and c charts Process Distribution. Definition of SPC.

douglassimon
Download Presentation

Statistical Process Control

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Statistical Process Control

  2. Overview • Definition of Statistical Process Control • Common causes and assignable causes of variation • Control charts • Type I and Type II Errors • R, x, p, and c charts • Process Distribution

  3. Definition of SPC Statistical process control (SPC) is the application of statistical techniques to determine whether the output of a process conforms to the product or service design.

  4. Common causes of variation Process Distribution for the Box-Filling Machine When Only Common Causes of Variation Are Present

  5. Assignable causes of variation

  6. Effects of Assignable Causes

  7. Control Charts - Examples

  8. Type I and Type II Errors

  9. R-chart A range chart, or R-chart, is used to monitor process variability.

  10. x-Charts An x-chart (read " x-bar chart") is used to measure the mean.

  11. p-Charts The p-chart is a commonly used control chart for attributes.

  12. c-Charts When management is interested in reducing the number of defects per unit, another type of control chart, the c-chart, is useful.

  13. Process Distribution

  14. Conclusion • Definition of Statistical Process Control • Common causes and assignable causes of variation • Control charts • Type I and Type II Errors • R, x, p, and c charts • Process Distribution • = Quality Control and Lower Costs

More Related