A Time Series with Forecast Values Is Presented in the Following

question 39

Multiple Choice

A time series with forecast values is presented in the following table: $$\begin{array} { | r | r | r | } \hline \text { Month } & \text { Actual } & \text { Forcast } \\\hline \text { Jan } & 1 & \\\hline \text { Mar } & 1.2 & * \\\hline \text { May } & 1.15 & * \\\hline \text { Jul } & 1.25 & * \\\hline \text { Sep } & 1.3 & * \\\hline \text { Nov } & 1.275 & x \\\hline\end{array}$$ If the mean absolute deviation (MAD) until September is 0.06, and the overall MAD is 0.05,
Then x = ______.

• A)1.270
• B)1.270 or 1.280
• C)1.265 or 1.285
• D)1.260 or 1.290
• E)1.285

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