2006 House · ID-1
Mason-Dixon Polling & Strategy · fieldwork ended 2006-10-24 (14 days before the election) · 314 respondents · Live Phone
The poll said
Democrat 37% · Republican 39%
R+2.0
The certified result
Democrat 45.37% · Republican 50.57%
R+5.2
The arithmetic
- Poll margin = 37 − 39 = -2.00
- Actual margin = 45.368 − 50.566 = -5.198
- Signed miss = -2.00 − (-5.198) = 3.198
- Absolute miss = |3.198| = 3.198
The poll overstated the Democrat by 3.2 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 55337, race ID 3716 (538 database).