Reply #27: Ras daily tracking polls are based on a three day rolling average

[seasat]

That poll is an average of Sunday, Monday, and Tuesday. We probably won't see clear effects on McCain's numbers until Friday.

Daily tracking results are collected via telephone surveys of 1,000 likely voters per night and reported on a three-day rolling average basis. The margin of sampling error—for the full sample of 3,000 Likely Voters--is +/- 2 percentage points with a 95% level of confidence. Results are also compiled on a full-week basis and crosstabs for the full-week results are available for Premium Members.