Understanding Quality Control (QC) Quality control involves testing units and determining if they are within the specifications for the final product.

How to Use Microsoft Excel to Draw Control Charts and Graphs. A control chart plots measured values along with upper and lower quality control limits. Values appearing outside these limits are ...

The control chart basics.2 types of variation and how we distinguish between common and special cause variation, along with how to create a rational subgroup. We also cover the equations and constants ...

Youíll learn ALL about the 7 QC Tools while we work an example to demonstrate how you might use these tools in the real world.

L. Allison Jones-Farmer, Jeremy D. Ezell, Benjamin T. Hazen, Applying Control Chart Methods to Enhance Data Quality, Technometrics, Vol. 56, No. 1 (February 2014), pp ...

Control chart- a time-ordered plot of sample statistics, used to distinguish between random and nonrandom variability Control limits- the dividing lines between random and nonrandom deviations from ...