Measurements can often be imprecise and subjected to rounding-off. Typically, this rounding-off is ignored and assumed to have little to no effect. However, when the measuring scale step is not ...

Abstract: Statistical Process Control (SPC) is a statistical method that is often used in process monitoring to minimize the number of product defects and detect process shifts quickly. Univariate and ...

Process control charts are an important application of statistical process control (SPC) that are used in the management of processes in various industries with the aim of maintaining consistency, ...

1 Facultad de Ingeniería, Universidad del Magdalena, Santa Marta, Colombia 2 Department of Statistics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia When initial sample ...

Abstract: The purpose of this paper is to present how a fuzzy process control chart is constructed for a process with fuzzy outcomes. In this paper, the fuzzy outcomes of the process are due to ...

Control charts that are properly constructed and maintained prevent false out-of-control signals and provide a useful method for monitoring a process. Process control is and has been an important ...