Monitoring the Weibull Scale Parameter Based on Type I Censored Data Using a Modified EWMA Control Chart

In industrial production, the exponentially weighted moving average scheme is widely used to monitor shifts in product quality, especially small-to-moderate shifts. this paper, we propose a modified one-sided EWMA for Type I right-censored Weibull lifetime data detecting scale parameter with shape fixed. A comparative analysis existing cumulative sum and results from literature provided. The zero-state steady-state behaviour of new are considered regard run length, standard deviation other performance measures. Our simulation shows stronger power changes censored using than that traditional scheme, superior most situations. real-data example further demonstrates effectiveness proposed method.