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Article | REF: R290 V1

Statistical process control - Using control cards

Authors: Françoise BOULANGER, Georges CHÉROUTE, Valérie JOLIVET

Publication date: March 10, 2006

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3. Capability of a means of production, a process, a means of measurement

Whatever the statistical distribution law used for a measured characteristic, its dispersion is defined as the centered interval containing 99.73% of the values; this interval is six standard deviations in the case of a normal distribution (figure 2 ).

Definition of dispersion
Figure 2...
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Capability of a means of production, a process, a means of measurement
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