The moving average (MA), exponentially weighted moving average (EWMA) and cumulative
sum (CUSUM) control charts are popular control charts to detect small shifts quickly in …

Existing univariate exponential weighted moving average (EWMA) control charts with
ranked set schemes are used for monitoring related characteristics independently. Also …

Control charts play a vital role to enhance the efficiency of the manufacturing process. In
many situations, the quality characteristic of interest to be monitored follows a non-normal …

Control charts are considered as powerful tools in detecting any shift in a process. Usually,
the Shewhart control chart is used when data follows the symmetrical property of a normal …

In this article, a new t‐chart based on generalized multiple dependent state (GMDS)
sampling is proposed for efficient monitoring of a process by assuming that the time between …

This paper presents the designing of the X-bar control chart using resampling scheme under
the uncertainty environment. The necessary measures of the present chart are derived …

The repetitive sampling scheme is utilized in control charts to enhance their detection ability
in process shifts. Their performance is usually evaluated under the assumption that the …

We proposed two robust confidence interval estimators, namely, the median interquartile
range confidence interval (MDIQR) and the trimean interquartile range confidence interval …

The design of a control chart has been presented using a belief estimator by assuming that
the quantitative characteristic of interest follows the gamma distribution. The authors present …

A new control chart for a service performance index based upon the proportion of customer
complaints using the repetitive sampling scheme is proposed. The control chart coefficients …