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 ...

Fuzzy control charts represent a significant evolution in Statistical Process Control (SPC) by addressing intrinsic uncertainties in measurement and human evaluation that classical approaches ...

Control charts usually present a graphic display of process stability and/or instability with time, from which the you can determine mean and standard deviation.

The use of multiple control limits and multiple corresponding levels of response for processes is an effective way for statistical process control when different assignable causes exist which lead to ...

An effective ASC infection control program must be robust. It should involve many individuals at the ASC, from staff members all the way up through leadership. It must also include many different ...

Traditional statistical process control charts assume that observations are independent and normally distributed about some mean. We investigate the robustness of traditional charts to data ...