This paper proposes another realistic application of the economic order quantity EOQ model. Researchers have studied EOQ models that assume the received lot contains items that are perfect and imperfect. All models in the literature assume that the received lot goes through a 100% inspection to separate acceptable items from the non-acceptable items. This paper argues that 100% inspection is no...

In this paper, a group acceptance sampling plan is developed for a truncated life test when the lifetime of an item follows the Marshall-Olkin extended exponential distribution. The minimum number of groups required for a given group size and the acceptance number is determined when the consumer’s risk and the test termination time are specified. The operating characteristic values, according t...

In this paper, a hybrid group acceptance sampling plan is developed for a truncated life test when the lifetime of an item follows log-logistic distribution. The minimum number of testers and acceptance number are determined when the consumer’s risk and the test termination time and group size are specified. The operating characteristic values according to various quality levels are found and t...

In this paper, we develop integrated inventory inspection models with and without replacement of nonconforming items. Inspection policies include no inspection, sampling inspection, and 100% inspection. We consider a buyer who places an order from a supplier. When a lot is received, the buyer uses some type of inspection policy. The fraction nonconforming is assumed to be a random variable foll...

The design of a new adaptive version the multiple dependent state (AMDS) sampling plan is presented based on time truncated life test under Weibull distribution. We achieved proposed by applying concept double and existing plans. A warning sign for acceptance number was to increase probability current lot acceptance. optimal parameters were determined simultaneously with nonlinear optimization ...

In the manufacturing processes, quantities like the proportion of defective units in a production lot may not be precisely known and most of the times the practitioners have to compromise with some imprecise (approximate) values. Prior knowledge of such quantities is required to evaluate the quality of a produced lot. In this paper, the properties of single sampling plan under situations involv...

The Importance of this paper is to account for the possibility dependence among items a sample. development new method designing sampling plans based on range quality instead point-wise description by invoking novel approach called Quality Regions. This seems be versatile and can adapted elementary production process where stipulated level advisable fix at later stage provides procedure meant i...

Acceptance sampling procedures are the practical tools for quality assurance applications involving product control. Acceptance sampling systems are advocated when small sample size are necessary or desirable towards costlier testing for product quality. Dodge – Romig plans can be single or double plans. There are two sets of plans. One is based on satisfying a given limiting quality level (LQL...

Abstract In this research, a new acceptance sampling plan for truncated life test is presented, assuming that the quality characteristic follows power Lomax distribution. The operating function values are calculated proposed plan, jointly with optimal sample size and producer’s risk selection of distribution parameters. Furthermore, comparative study other plans introduced to demonstrate advant...

Six Sigma is a concept, a process, a measurement, a tool, a quality philosophy, a culture and a management strategy for the improvement in the system of an organization, in order to reduce wastages and increase the profit to the management and satisfaction to the customers. Six Sigma is a business improvement approach and management philosophy that seeks to find and remove causes of defects/err...