Thanks for the slope comparison

[Todd Hatfield <hatfield@solander.bc.ca>]

Many thanks to Jason Connor, Eric Zivot, Matthew Zack, Joseph Bevene, Paul 
Lin, Rolf Turner and Ed Jones for patiently demonstrating how to run a 
t-test on regression coefficients.  The answer is:
(coeff - 0) / s.e.(coeff) ~ t(df)
This tests how different the coefficient is from 0. To test against other 
slopes, you simply need to replace the "0" with the other
number.

Thank you all very much!

Cheers, Todd Hatfield