Statistical Monitoring of Process Capability Index Having One Sided Specification Under Repetitive Sampling Using an Exact Distribution

This paper proposes a control chart using repetitive sampling for monitoring process capability index having one-sided specification limit using an exact distribution. The performance of the proposed chart is evaluated in terms of average run lengths using the exact probability distribution of the process capability index. The result shows that the proposed chart is more efficient by indicating the quicker out-of-control signals than the one using single sampling.