The purpose of this article is to present an optimization model for designing an acceptance sampling plan based on cumulative sum of run length of conforming items. The objective is to minimize the total loss including both the producer and consumer losses. The concept of minimum angle method is applied to consider producer and consumer risks in the optimization model. Also the average number o...

In 2000, Balamurali and Govindaraju presented the modified tightened two-level continuous sampling plan (modified MLP-T-2 plan). This paper explores the problem of minimizing the average fraction inspected (AFI) for a modified MLP-T-2 plan. The solution procedure is developed to find the optimal parameters that will meet the average outgoing quality limit (AOQL) requirement, while also minimizi...

The LTPD plans for acceptance sampling which minimize the mean inspection cost per lot of the process average quality when the remainder of the rejected lots is inspected were originally designed by Dodge and Romig for the inspection by attributes. The sampling plans for the inspection by variables were then proposed and it has been shown that such plans are in many situations in practice more ...

A dynamic sampling plan among strata is a permutation of sampled items specifying which stratum is to receive the next item to be included in the sample. An optimal such plan has the property of achieving minimum variance for its cost whenever it is truncated. This article shows that optimal dynamic sampling plans exist under very general conditions, and gives a simple algorithm for constructin...

The U.S. Department of Agriculture’s Nutrient Data Laboratory (NDL), a division of the Agricultural Research Service (ARS), develops reliable databases and state of the art methodology to evaluate and disseminate composition data on foods available in the United States. In 1997, NDL in cooperation with the National Heart Lung and Blood Institute (part of the National Institutes of Health) inaug...

This work determines the best technique, sampling unit and the number of samples to compose a sampling plan for Frankliniella schultzei (Trybom) and Thrips palmi (Karny) (Thysanoptera: Thripidae) on cucumber. The efficacy of three sampling techniques: leaf beating on a plastic tray, direct counting of insects on the lower leaf surface, and whole leaf collection in bags were compared in nine com...

Abstract: All classical acceptance sampling plans were constructed with the proportion of defective that is crisp value. In the manufacturing processes, this parameter in a production lot may not be precis ely known. Hence it is meaningful to treat such parameter as fuzzy quantities. In this paper we have argued for the acceptance double sampling plan when the proportion of defective items is a...

In this paper, we develop an optimization model for the economic design of repetitive sampling plan in the presence of two markets. The process under consideration produces a product with a normally distributed quality characteristic with unknown mean and known variance. The quality characteristic has a lower specification limit. The quality of the product is controlled via lot-by-lot acceptanc...

In this article, a novel acceptance-sampling plan is proposed to decide whether to accept or reject a receiving batch of items. In this plan, the items in the receiving batch are inspected until a nonconforming item is found. When the sum of two consecutive values of the number of conforming items between two successive nonconforming items falls underneath of a lower control threshold, the batc...