'Process average' diaporamas de présentation

Control Charts for Variables

Control Charts for Variables. EBB 341 Quality Control. Variation. There is no two natural items in any category are the same. Variation may be quite large or very small. If variation very small, it may appear that items are identical, but precision instruments will show differences.

3.76k views • 66 slides

Supplement 6

Supplement 6. Statistical Process Control. Statistical Process Control (SPC) Control Charts for Variables The Central Limit Theorem Setting Mean Chart Limits (x-Charts) Setting Range Chart Limits (R-Charts) Using Mean and Range Charts Control Charts for Attributes. Outline.

601 views • 43 slides

Statistical Process Control

Statistical Process Control. Take periodic samples from a process Plot the sample points on a control chart Determine if the process is within limits Correct the process before defects occur. Common Causes. Assignable Causes. Average. Grams. (a) Mean. Assignable Causes. Average. Grams.

824 views • 42 slides

Design of Experiments: a Paradigm Popper

476 views • 35 slides

Control Charts

Control Charts. originally developed by Walter A. Shewhart. Control Charts. The control chart is a statistical quality control tool used in the monitoring variation in the characteristics of a product or service. Control Charts.

384 views • 28 slides

Control Charts

294 views • 11 slides