what is the difference between quality control and tolerance limits in sqc?
difference between control limits & tolerance limits in statistical quality control (SQC)?
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what is the difference between quality control and tolerance limits in sqc?
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mean (+ and - ) 3 sigma contains 997 out of 1000 in a normal distribution.
so depending upon how stringent you want your testing to be, you can set tolerance limits less(strict) or more (lax) than 3 sigma.
Natural Tolerance Limits
statistical qc is particularly new. The technological information of information itself is going lower back in basic terms 2 to 3 centuries. And its best advancements have taken place throughout the twentieth century. the faster purposes have been made in astronomy and physics and in the organic and organic and social sciences. It exchange into no longer till the Nineteen Twenties that statistical thought began to be utilized effectively to qc as a results of the shape of sampling thought.
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