1. A simple forecasting model, which assumes that the most recent time period da
ID: 1947965 • Letter: 1
Question
1. A simple forecasting model, which assumes that the most recent time period data is the best predictor for the future period, is the simple exponential smoothing model. (Points : 8)True
False
2. A simple linear regression model in which time is used as the explanatory variable is often used to estimate the trend component of a time-series data. (Points : 8)
True
False
3. A descriptive measure that is useful in allowing comparisons of data over time is the index number. (Points : 8)
True
False
4. What is the value of the mean absolute deviation (MAD) for the forecasting technique whose forecasts for four past periods and the subsequent actual values are given below?
Actual 129 134 138 142
Forecast 136 126 130 146
(Points : 8)
1.25
2.50
0.50
6.75
5.25
5. What is the forecast for the next period using an exponential smoothing technique (alpha = 0.5) if the actual value last period was 170 and the forecast was 180? (Points : 8)
170
175
180
185
850
Explanation / Answer
1 f 2 t 3 t 4=2.50 5=175
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