Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Sampling plans are, in general, classified under two categories, viz., lot-by-lot sampling by attributes and lot-by-lot sampling by variables. Lot-by-lot sampling by attributes is applied when the quality characteristic under consideration is an attribute. When the quality characteristic is measurable on a continuous scale, the associated sampling plan is known as lot-by-lot sampling by variables. In lot-by-lot inspection by variables, one or more samples of items are drawn from a given lot; the measurements of a quality characteristic in each sampled item are taken; and the decision of acceptance or rejection of the lot is made as a function of such measurements. The theory of inspection by variables is applicable when the quality characteristic of sampled items is measurable on a continuous scale and the functional form of the probability distribution is assumed to be known. The measurement data obtained from a production process will exhibit any kind of probability distribution. This study focuses on the design and evaluation of such sampling plans under both normal and non-normal lifetime distributions.
