Resumen

RODRIGUEZ-BALZA, Mairett Yuri; MACHADO-TORREALBA, Wilfre Saúl  y  VILLAMARIN-OLIVEROS, Alexis Javier. Sampling for quality control in the process of manufacturing metal containers for food. Ing. invest. y tecnol. [online]. 2019, vol.20, n.2. ISSN 2594-0732.  https://doi.org/10.22201/fi.25940732e.2019.20n2.017.

This article proposes the use of probabilistic systematic sampling as a quality monitoring tool in manufacturing processes, with continuous production lines and sampling units sequentially ordered. The case of a company that manufactures metal containers for food preservation is addressed. The minimum required sample size was determined, starting from the simple random sampling for the population formed by a day of production and a maximum admissible error according to the tolerances of the quality characteristics of the containers. The variances were estimated through a pilot sampling. The results indicate the feasibility of using probabilistic systematic sampling, to sample the containers in the production line, in order to apply statistical control tools.

Palabras llave : Systematic selection; process monitoring; pilot sampling; sample size.