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A Concert Promoter Is Forecasting This Year's Attendance for One

question 75

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A concert promoter is forecasting this year's attendance for one of his concerts based on the following historical data:  Year  Attendance  Four years ago 10,000 Three years ago 12,000 Two years ago 18,000 Last Year 20,000\begin{array} { l l } \text { Year } & \text { Attendance } \\\hline \text { Four years ago } & 10,000 \\\text { Three years ago } & 12,000 \\\text { Two years ago } & 18,000 \\\text { Last Year } & 20,000\end{array} What is this year's forecast using exponential smoothing with alpha = .2, if last year's smoothed forecast was 15,000?


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