2016 President · AL
SurveyMonkey · fieldwork ended 2016-11-04 (4 days before the election) · 1,131 respondents · Online Panel
The poll said
Democrat 36% · Republican 55%
R+19.0
The certified result
Democrat 34.36% · Republican 62.08%
R+27.7
The arithmetic
- Poll margin = 36 − 55 = -19.00
- Actual margin = 34.358 − 62.083 = -27.725
- Signed miss = -19.00 − (-27.725) = 8.725
- Absolute miss = |8.725| = 8.725
The poll overstated the Democrat by 8.7 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 48860, race ID 603 (538 database).