2. Enter ls y c x at the command line, and then press enter.
3. The equation window pops up, as shown. By observing the t statistics and determinable coefficient, we can know that the model has passed the test of economic significance, and the comparison between the look-up table and the t statistics of X shows that the t test value is significant. The model can explain that y is as high as 99.3%.
4. Expand the sample period from 1978-2003 to 1978-2004: click the proc- > button in the working file window; Structure.
5. Pop up the working file? Structure window, change 2003 to 2004, and then click OK, as shown.
6. Enter the value 2004 x in the Group window, as shown.
7. Click Forecast in the formula window.
8. Click OK in the pop-up window. Complete the renderings.