2014 Senate · NJ
YouGov · fieldwork ended 2014-10-20 (15 days before the election) · 1,868 respondents · Online Panel
The poll said
Democrat 51% · Republican 39%
D+12.0
The certified result
Democrat 55.84% · Republican 42.33%
D+13.5
The arithmetic
- Poll margin = 51 − 39 = 12.00
- Actual margin = 55.836 − 42.326 = 13.510
- Signed miss = 12.00 − (13.510) = -1.510
- Absolute miss = |-1.510| = 1.510
The poll overstated the Republican by 1.5 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 33759, race ID 10 (538 database).