Understanding Attribute Acceptance Sampling - …

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Attribute Sampling1Ombu Enterprises, LLCUnderstanding Attribute Acceptance SamplingDan O Leary CBA, CQA, CQE, CRE, SSBB, CIRMPresidentOmbu Enterprises, 2009, 2010 ombu Enterprises, LLCOMBUENTERPRISES, LLCAttribute Sampling2Ombu Enterprises, LLCOutline Sampling Plan Concepts ANSI/ASQ Single Sampling Plans Double and Multiple Sampling Plans c=0 Sampling Plans Summary and Conclusions QuestionsAttribute Sampling3Ombu Enterprises, LLCSampling PlansSome Initial ConceptsAttribute Sampling4Ombu Enterprises, LLCA Typical Application You receive a shipment of 5,000 widgets from a new supplier. Is the shipment good enough to put into your inventory?How will you decide? Attribute Sampling5Ombu Enterprises, LLCYou Have a Few Approaches Consider three potential solutions Look at all 5,000 widgets (100% inspection) Don t look at any, put the whole shipment into stock (0% inspection) Look at some of them, and if enough of those are good, keep the lot ( Acceptance Sampling ) In a Sampling plan, we need to know: How many to inspect or test?

Attribute Sampling Ombu Enterprises, LLC 1 Understanding Attribute Acceptance Sampling Dan O’Leary CBA, CQA, CQE, CRE, SSBB, CIRM President Ombu Enterprises, LLC Dan@OmbuEnterprises.com

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