A model with first-order autoregressive errors, AR(1), has the form while an AR(2) error process has the form and so forth for higher-order processes. Note that the ...

What is your Exponentially Weighted Moving Average? If you are monitoring your process data over time, you might want to place greater emphasis on your most recent data and less on your historical ...

Moving averages are technical indicators used by investors in the stock market. A moving average (MA) represents the sum of the closing prices of a security over a specific number of periods ...

For example, suppose you want to construct a two-sided moving average chart with an in-control ARL of 100 and an ARL of 9 for detecting a shift of . Table 21.21 shows that the combination w=3 and ...