2017 Governor · NJ
Quinnipiac University · fieldwork ended 2017-11-02 (5 days before the election) · 662 respondents · Live Phone
The poll said
Democrat 53% · Republican 41%
D+12.0
The certified result
Democrat 56.03% · Republican 41.89%
D+14.1
The arithmetic
- Poll margin = 53 − 41 = 12.00
- Actual margin = 56.026 − 41.891 = 14.135
- Signed miss = 12.00 − (14.135) = -2.135
- Absolute miss = |-2.135| = 2.135
The poll overstated the Republican by 2.1 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 50545, race ID 1215 (538 database).