Process Capability Evaluation Using Capability Indices as a Part of Statistical Process Control

Marta Benková, Dagmar Bednárová () and Gabriela Bogdanovská
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Marta Benková: Institute of Control and Informatization of Production Processes, Faculty of Mining, Ecology, Process Control and Geotechnologies, Technical University of Košice, Němcovej 3, 042 00 Košice-Sever, Slovakia
Dagmar Bednárová: Institute of Control and Informatization of Production Processes, Faculty of Mining, Ecology, Process Control and Geotechnologies, Technical University of Košice, Němcovej 3, 042 00 Košice-Sever, Slovakia
Gabriela Bogdanovská: Institute of Control and Informatization of Production Processes, Faculty of Mining, Ecology, Process Control and Geotechnologies, Technical University of Košice, Němcovej 3, 042 00 Košice-Sever, Slovakia

Mathematics, 2024, vol. 12, issue 11, 1-29

Abstract: This study aims to highlight the importance of a systematic approach to process capability assessment and the importance of following a sequence of steps. Statistical process control provides several different ways of assessing process capability. This study evaluates the process capability of crown cap manufacturing through capability indices. In addition to calculating the indices, the evaluation involves extensive data analysis. Before calculating the capability indices, the assumptions for their correct selection and use were also verified. Several statistical tests were used to verify each assumption. The research value of the study lies in pointing out that not all tests led to the same conclusions. It highlights the importance of selecting the appropriate test type for the evaluated process quality characteristics.

Keywords: statistical process control; data analysis; control chart; test of statistical hypothesis; process capability index (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
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