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Based on the Following Data,a Forecaster Used Simple Exponential Smoothing  Time  Demand 117221319423518\begin{array} { c c } \text { Time } & \text { Demand } \\1 & 17 \\2 & 21 \\3 & 19 \\4 & 23 \\5 & 18\end{array}

question 97

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Based on the following data,a forecaster used simple exponential smoothing and determined the following: S0 = 19,S1 = 18.6,S2 = 19.08,S3 = 19.064,S4 = 19.851 and S5 = 19.481.  Time  Demand 117221319423518\begin{array} { c c } \text { Time } & \text { Demand } \\1 & 17 \\2 & 21 \\3 & 19 \\4 & 23 \\5 & 18\end{array}
-Calculate the Mean Absolute Deviation (MAD).


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