In this paper a new sequential sampling plan is introduced in which the acceptable quality level (AQL) and the lot tolerance percent defective (LTPD) are a fuzzy number. This plan is well defined, since, if the parameters are crisp, it changes to a classical plan. For such a plan, a particular table of rejection and acceptance is calculated and compared with the classical one. Keywords : St...

the seasonal abundance patterns of the cotton aphid, aphis gossypii glover, in cotton fields at gorgan in northern iran were studied during two growing seasons of 2002 and 2003. the spatial distribution of different developmental stages and morphs of the aphid was described by fitting data to poisson (random) and negative binomial (aggregated) dis-tributions, and calculating the dispersion indi...

Sequential sampling occurs when an entire population is unknown in advance and data are received one by or groups of units. This article proposes a new algorithm to sequentially select balanced sample. The respects equal unequal inclusion probabilities. method can also be used spatially sample if the interest contains spatial coordinates. A simulation study proposed, results show that proposed ...