Repetitive group sampling procedure for variables inspection

TLDR

The repetitive group sampling plan for variables inspection is useful when testing is costly and destructive. This paper introduces repetitive group sampling (RGS) for variables inspection and discusses its advantages over single, double, and attribute RGS plans. The authors construct tables for selecting parameters of known and unknown standard deviation variables in the RGS plan, indexed by acceptable and limiting quality levels. Keywords include acceptable quality level, average sample number, limiting quality level, repetitive group sampling, and sampling by variables, and the authors thank the editor and referees and acknowledge KOSEF support via the National Core Research Center for Systems Bio‑Dynamics and Production Technology Center at POSTECH.

Abstract

Abstract This paper introduces the concept of repetitive group sampling (RGS) for variables inspection. The repetitive group sampling plan for variables inspection will be useful when testing is costly and destructive. The advantages of the variables RGS plan over variables single sampling plan, variables double sampling plan and attributes RGS plan are discussed. Tables are also constructed for the selection of parameters of known and unknown standard deviation variables repetitive group sampling plan indexed by acceptable quality level and limiting quality level. Keywords: Acceptable quality levelaverage sample numberlimiting quality levelrepetitive group samplingsampling by variables Acknowledgements The authors wish to thank the editor and the anonymous referees for their constructive comments on this paper. This research was supported by the KOSEF through National Core Research Center for Systems Bio-Dynamics and Production Technology Center at POSTECH.