We have three variables
X Y Z
X = F (Y, Z)
Information is 2000-2005. I use OLS to Determine the model and get a standard result.
for arguments sake I'll say it is X=3.00 -5.00Y +250Z
I want to be able to predict the value of X with what I expect the values of both Y and Z to be in the year 2006. I expect Y to be 50 in 2006, and likewise expect Z to be 25 in 2006.