The statement that is not applicable to a time series is: d. A simple moving-average method should be used to estimate the mean demand of a time series that has a pronounced trend and seasonal influences.
What is a Time Series?
Time series are data points that are graphed in time order. This series involves the repetition of a task or observation over a fixed time-space.
To break down the time series, trend and cyle are jointly combined to a trend cycle.
Former values obtained are used to make future predictions. So, the simple moving-average method is not used to estimate the mean demand of a time series.
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