2012 President · CT
SurveyUSA · fieldwork ended 2012-10-20 (17 days before the election) · 575 respondents · IVR/Online Panel
The poll said
Democrat 53% · Republican 40%
D+13.0
The certified result
Democrat 58.06% · Republican 40.73%
D+17.3
The arithmetic
- Poll margin = 53 − 40 = 13.00
- Actual margin = 58.057 − 40.725 = 17.332
- Signed miss = 13.00 − (17.332) = -4.331
- Absolute miss = |-4.331| = 4.331
The poll overstated the Republican by 4.3 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 30236, race ID 659 (538 database).