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I have a regression model of the form
Ln(crh)= b0 + b1*time + b2*group + b3*(group*time)
Group=0 or 1
On estimating the model I get the coefficients as b0= 1.909274, b1=.0826049,
b2= -.232426, and b3 = .0266414. With these coefficients, if I try to predict the value of ln(crh) for time=10; I get a value of 2.735 for group-0 and 2.769 for group-1. I calculated this by back substitution.
If I try to predict ln(crh) at time=10 using the ‘adjust’ command I get a different value for group-1. I get 3.022 as the predicted value for group-1 but the predicted value for group-0 remains the same as before.
I'd appreciate any help on this
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