5. The method of moving averages is used A) to plot a series. B) in regression a
ID: 2916434 • Letter: 5
Question
5.
The method of moving averages is used
A) to plot a series.
B) in regression analysis.
C) to smooth a series.
D) to exponentiate aseries.
6.
When using the exponentially weighted moving average forpurposes of forecasting rather than smoothing,
A) the current smoothed valuebecomes the forecast.
B) the previous smoothed valuebecomes the forecast.
C) the next smoothed valuebecomes the forecast.
D) none of the above
7.
In selecting an appropriate forecasting model, the followingapproaches are suggested:
A) Use the principle ofparsimony.
B) Measure the size of theforecasting error.
C) Perform a residualanalysis.
D) all of the above
8.
To assess the adequacy of a forecasting model, one measure thatis often used is
Explanation / Answer
5) C) is the answer is to smooth a series. 6)D) None of the above 7)C) Perform a residual analysis 8)A) the MAD is mean absolute deviation.
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