In: Statistics and Probability
A statistical program is recommended.
Consider the following time series.
| Quarter | Year 1 | Year 2 | Year 3 | 
|---|---|---|---|
| 1 | 72 | 69 | 63 | 
| 2 | 49 | 41 | 51 | 
| 3 | 59 | 61 | 54 | 
| 4 | 77 | 80 | 71 | 
Use the following dummy variables to develop an estimated regression equation to account for seasonal effects in the data:
x1 = 1 if quarter 1, 0 otherwise; x2 = 1 if quarter 2, 0 otherwise; x3 = 1 if quarter 3, 0 otherwise.
=
(c) Compute the quarterly forecasts for next year.
quarter 1 forecast
quarter 2 forecast
quarter 3 forecast
quarter 4 forecast