2004 President · NJ
SurveyUSA · fieldwork ended 2004-10-28 (5 days before the election) · 794 respondents · IVR
The poll said
Democrat 54% · Republican 42%
D+12.0
The certified result
Democrat 52.92% · Republican 46.24%
D+6.7
The arithmetic
- Poll margin = 54 − 42 = 12.00
- Actual margin = 52.923 − 46.239 = 6.684
- Signed miss = 12.00 − (6.684) = 5.315
- Absolute miss = |5.315| = 5.315
The poll overstated the Democrat by 5.3 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 4386, race ID 786 (538 database).