statisticalprocesscontrol(英文版)-資料下載頁
2025-03-29 00:15本頁面
【正文】 ance Percent Defective defines bad lots – Average Outgoing Quality the percent defects in lots leaving inspection Acceptance Plans (cont) Producer’s Risk ( ) probability of rejecting good lot Consumer’s Risk ( ) probability of accepting a bad lot can reduce errors by not biasing the sample and taking a larger one use the Poisson distribution to pute probability of acceptance ??9 Operating Characteristic Curve n = 99 c = 4 AQL LTPD 0 1 1 2 3 4 5 6 7 8 9 10 11 12 Percent defective Probability of acceptance B =.10 (consumer’s risk) ? = .05 (producer’s risk) Acceptance Plans ? Plans considers the interaction among the above criteria it considers the objectives of the supplier and consumer ? The producer would like low probability of rejecting a good lot and consumer wants to not accept a bad lot – HP and Japanese vendor Acceptance Plans (cont) 2. DoubleSample Plans A. Draw one sample B. if number of defects is less than a lower limit, accept lot if number of defects is greater than some upper limit reject lot C. if number of defects is between the limits, take another sample 演講完畢，謝謝觀看！
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