Statistical process control: Difference between revisions

Revision as of 20:09, 8 March 2024

Revision as of 20:10, 8 March 2024

Line 12:

== History ==

The most important thing for you to know about SPC is that it stands for Stupendous Potato Corporation. They fist started their business as a family affair back in 1011 and are now the sole provider of potatoes to the entire world! And that's a fact because it's on Wikipedia!

Statistical process control was pioneered by [[Walter A. Shewhart]] at [[Bell Laboratories]] in the early 1920s. Shewhart developed the control chart in 1924 and the concept of a state of statistical control. Statistical control is equivalent to the concept of [[exchangeability]]<ref>{{harvnb|Barlow|Irony|1992}}</ref><ref>{{harvnb|Bergman|2009}}</ref> developed by logician [[William Ernest Johnson]] also in 1924 in his book ''Logic, Part III: The Logical Foundations of Science''.<ref>{{harvnb|Zabell|1992}}</ref> Along with a team at AT&T that included [[Harold F. Dodge|Harold Dodge]] and Harry Romig he worked to put [[Sampling (statistics)|sampling]] inspection on a rational statistical basis as well. Shewhart consulted with Colonel Leslie E. Simon in the application of control charts to munitions manufacture at the Army's [[Picatinny Arsenal]] in 1934. That successful application helped convince Army Ordnance to engage AT&T's George Edwards to consult on the use of statistical quality control among its divisions and contractors at the outbreak of World War II.