Below you are given the first two values of a time series. You are also given the first two values of the exponential smoothing forecast.
Time Period (t)
Time Series Value (Yt)
Exponential SmoothingForecast (Ft)
1
18
18
2
22
18
?
If the smoothing constant equals .2, then the exponential smoothing forecast for time period 3 is
A. 18.
B. 18.8.
C. 21.2.
D. 40.
Answer: B
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