Poll Average Details- MN Governor - 2006-11-07 23:00:00

The Poll Average is a weighted and adjusted number.
[Mid Date Column] All times are calculated by the middle date of the poll if it spans multiple days.
A time window of 2 months prior to the most recent poll is used.
[Time Weight Column] Polls are weighted in the amount they contribute to the final results in a linear fashion in this time window - the newest poll has a weight of 1, a poll 30 days prior will have a weight of 0.5 and a poll 60 days out will have a weight of 0. If the same pollster has more than one poll in this time period, only the newest will be used.
[Internal Column] If a poll is marked as being an internal poll for one of the candidates, it's weight will be halved.
[Candidate Columns, Bias] OurCampaigns has calculated partisan bias figures for all Polling Firms based on data from final vote totals in races they have polled. These amounts are subtracted from the poll result - in the case the bias figure is negative it will effectively be added to the poll result and appear as two dashes (minus a negative = plus). [TOTAL Row] The adjusted weights are summed for each poll result and the adjusted poll results for each candidate are multiplied by the poll weight and then summed. Each candidate's poll sum is divided by their weight sum to give the total.

PollMid DateTime WeightInternal Mike Hatch Tim Pawlenty Peter Hutchinson Others Ken Pentel Nelson Gonzalez Leslie Davis Walt E. Brown Murphy Wentworth David W. Hinkley
Princeton Survey Research Associates11/6X 1.00000   44.0000 - 1.4368 bias 41.0000 - -1.1956 bias 7.0000 - 0.7498 bias              
Survey USA11/5X 0.98333   45.0000 - 0.4267 bias 45.0000 - 0.3780 bias 8.0000 - 0.2458 bias              
Polimetrix11/5X 0.98333   49.0000 - 6.3951 bias 45.0000 - 1.6908 bias                
Mason-Dixon10/30X 0.88333   44.0000 - 2.6819 bias 42.0000 - 0.8876 bias 4.0000 - 1.3625 bias              
Internal Candidate Poll10/30X 0.88333  X 1/2 48.0000 - 7.6007 bias 42.0000 - -4.9085 bias                
Humphrey Institute/University of Minnesota10/28X 0.85000   45.0000 - 1.4918 bias 39.0000 - -1.4775 bias 9.0000 - 1.9238 bias              
Zogby Interactive10/27X 0.83333   46.1000 - 1.7442 bias 44.7000 - 0.8373 bias 6.3000 - 0.0542 bias              
Saint Cloud University10/27X 0.83333   46.0000 - 6.5164 bias 36.0000 - -3.5658 bias                
Rasmussen Reports10/4X 0.45000   44.0000 - 2.9187 bias 42.0000 - 1.6097 bias 9.0000 - 0.3537 bias              
TOTAL 42.429001 42.406486 6.263079 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000