"Tom Betz" wrote in message
...
From http://www.insideradio.com/:

Al Franken has some New York numbers to crow about.

And he did crow about beating Rush with 25-54s -- as Air America flagship
WLIB did an extrapolated 3.4 for the month of April compared to WABC's 3.1
in
middays. Caution: Extrapolations are far from official.

A Phase I extrap is based on two exact months and one simple math
calculation. With the exception of book-to-book weighting differences, P1
extraps are very close to the 'real" numbers seen when he full book comes
out.