The purpose of calculating a centered moving average is to remove the seasonal component from the time series.
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Q190: The random component is not part of
Q191: Deseasonalizing the time series removes the effect
Q192: Positive autocorrelation is present in a time
Q193: For a relatively large beta (closer to
Q194: When using exponential smoothing, there is no
Q196: Increasing the number of periods in a
Q197: The slope of the regression line in
Q198: The simple moving average forecast is actually
Q199: The convention for weighted moving average forecasting
Q200: All else being equal, choose the forecast
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