[R] Predictkion interval using regression coefficients

From: Zd Gibbs <zd.gibbs_at_yahoo.com>
Date: Tue, 12 Apr 2011 10:54:48 -0700 (PDT)

I was given a list of parameter estimates from my boss. She wants to predict the dependent variable "fsshen" beyond jan 2011, the last observation, through December 2011, giving the prediction intervals (90%). I don't know if I have the complete information to do this. So my question(s) is can R determine a prediction interval from this data with just these parameter estimates. And if so, how?

Thanks all who can help.


Here are the parameter estimates:
Jan dummy 108.422
Feb dummy 107.619

Mrc dummy 80.515 
Apr dummy 95.307
May dummy 92.340 
Jun dummy 99.866
Jul dummy 83.276
Aug dummy 78.763
Sep dummy 83.717 

Oct dummy 103.963
Nov dummy 63.060
Dec dummy 27.147
coeff. on "SalesLag11" 0.423

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