Novel of statistical quality control development and econometric applications

Y Areepong, S Sukparungsee - Asian Journal of Economics and …, 2024 - emerald.com
Purpose The purpose of this paper is to investigate and review the impact of the use of
statistical quality control (SQC) development and analytical and numerical methods on …

[PDF][PDF] Exact run length computation on EWMA control chart for stationary moving average process with exogenous variables

W Suriyakat, K Petcharat - Mathematics and Statistics, 2022 - researchgate.net
The exponentially weighted moving average (EWMA) control chart is a popular tool used to
monitor and identify slight unnatural variations in the manufacturing, industrial, and service …

Exact run length evaluation on a two-sided modified exponentially weighted moving average chart for monitoring process mean

P Phanthuna, Y Areepong… - Computer Modeling in …, 2021 - ingentaconnect.com
A modified exponentially weighted moving average (EWMA) scheme is one of the quality
control charts such that this control chart can quickly detect a small shift. The average run …

[PDF][PDF] The exact solution of the average run length on a modified EWMA control chart for the first-order moving-average process.

Y Supharakonsakun, Y Areepong, S Sukparungsee - ScienceAsia, 2020 - researchgate.net
Statistical process control methods are widely used in several fields for monitoring and
detecting process problems. One of them is the control chart which is powerful and effective …

[PDF][PDF] Exact Run Length Evaluation on Extended EWMA Control Chart for Seasonal Autoregressive Process.

K Karoon, Y Areepong… - Engineering …, 2022 - engineeringletters.com
Herein, we derive explicit formulas for the average run length (ARL) on an extended
exponentially weighted moving average (EWMA) chart running a seasonal autoregressive …

[PDF][PDF] Average run length with a practical investigation of estimating parameters of the EWMA control chart on the long memory AFRIMA process

R Sunthornwat, Y Areepong… - Thailand Statistician, 2018 - researchgate.net
An appropriate control chart for practical observations should be designed from optimal
parameters. In this research, the main objectives are to estimate the optimal smoothing …

Run length distribution for a modified EWMA scheme fitted with a stationary AR (p) model

P Phanthuna, Y Areepong… - … in Statistics-Simulation …, 2023 - Taylor & Francis
A modified exponentially weighted moving average (EWMA) scheme is a quality control
chart which can quickly detect small shifts in autocorrelated data. In this article, an explicit …

Average run length of the long-memory autoregressive fractionally integrated moving average process of the exponential weighted moving average control chart

R Sunthornwat, Y Areepong… - Cogent …, 2017 - Taylor & Francis
Measurement of control chart efficiency by comparison of average run length (ARL) is widely
implemented in quality control. The aim of this study is to evaluate the ARL, which is a …

Exact solution of average run length on extended EWMA control chart for the first-order autoregressive process

K Karoon, Y Areepong, S Sukparungsee - Thailand Statistician, 2022 - ph02.tci-thaijo.org
Statistical process control methods are widely used in several fields for monitoring and
detecting process problems. One of them is the control chart which is effective for monitoring …

[PDF][PDF] Numerical integral equation methods of average run length on modified EWMA control chart for exponential AR (1) process

P Phanthuna, Y Areepong… - Proceedings of the …, 2018 - iaeng.org
The purpose of this research is to develop the numerical integral equation (NIE) methods for
evaluating the average run length (ARL) on modified exponentially weighted moving …