[EN] Control charts for variables are a reference tool for the statistical monitoring of a quantitative variable. However, there are processes in which the exact measurement of the variable is highly complex or costly. In ...
[EN] This paper proposes a new double sampling scheme for c control chart (DS-c), which was designed to improve the performance of c chart or to reduce the inspection cost. The mathematical expression required to do an ...
Suárez Cabello, Mauricio Jhonatan(Universitat Politècnica de València, 2019-10-25)
[ES] El coeficiente de variación multivariante es una medida relativa de la dispersión de un pro-ceso que toma en cuenta las desviaciones típicas, covarianzas y las medias del conjunto de variables involucradas, dando como ...
Contaminated water resources have important implications on health and the environment. Nitrate contamination of the groundwater is a serious problem in the European Union. A method based on the statistical process control ...
Giner Bosch, Vicent; Cabrerizo Cabanos, Majarlika María; Debón Aucejo, Ana María(Instituto Nacional de Estadística, 2016)
[EN] The evolution of mortality is a key global concern from both an economic and
social point of view. In particular, being able to detect and predict changes in
mortality compared to its expected behaviour as accurately ...