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A Control Chart is a Picture of what we are doing.
Upper Control Limit
Lower Control Limit
Average
Developed in the mid 1920's by Walter Shewhart of Bell labs, this SPC tool has become a major contributor to the quality improvement process. It allows the use to monitor and control process variation. It also allow the user to make the proper correctiv
What’s Wrong With This Picture?
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All Y'All Come Back Now, Y' Hear?![]()
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