THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The table below is the data set of the number of preorders received for a particular game on a weekly basis.
The forecaster uses the Holt-Winters Exponential Smoothing for nonseasonal series to forecast the number of preorders in future time periods.
He uses α = 0.8 and β = 0.5.(Hint: Use the formula from the text to arrive at the answers. )

-The method of moving averages is used to:

A) smoothen a time series.
B) plot a time series.
C) exponentiate a time series.
D) represent a time series as an additive model.