1)Holtz model accounts for any growth factor present in a time series by? a-the

Question

1)Holtz model accounts for any growth factor present in a time series by?

a-the use of a linear trend

b-smoothing the most recent trend by last periods smoothed trend

c-adding trend exponential smoothing to estimate

d-all of the above

2)the adaptive response rate single exponential smoothing model is termed adaptive because

a-it responds to changes in the pattern of data

b-the smoothing parameter changes each period

c-it has the ability to model changes in the mean of time series

d-it can cirtually take care of itsself in generating forecasts

e-all of the above

Explanation / Answer

Holt (1957) extended simple exponential smoothing to allow forecasting of data with a trend. This method involves a forecast equation and two smoothing equations (one for the level and one for the trend):

Forecast equationLevel equationTrend equationy^t+h|ttbt=t+hbt=yt+(1)(t1+bt1)=(tt1)+(1)bt1

1)

Answer is option E

All of the above.

2) Answer is option E

All of the above.

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