Industrial process use single and double Exponential Weighted Moving Average control charts to detect small shifts in it. Occasionally there is a need to detect small trends instead of shifts, but the effectiveness to detect small trends. A new control chart is proposed to detect a small drift.
A previous version of this article incorrectly listed the first author's institutional affiliation as the University of Northern Colorado. This has been corrected to the University of Northern California.
Abreu, R. P., & Schaffer J. R. (2017). A Double EWMA Control Chart for the Individuals Based on a Linear Prediction. Journal of Modern Applied Statistical Methods, 16(2), 443-457. doi: 10.22237/jmasm/1509495840