2014 Senate · ME
University of New Hampshire Survey Center · fieldwork ended 2014-10-18 (17 days before the election) · 667 respondents · Live Phone
The poll said
Democrat 30% · Republican 65%
R+35.0
The certified result
Democrat 31.50% · Republican 68.46%
R+37.0
The arithmetic
- Poll margin = 30 − 65 = -35.00
- Actual margin = 31.498 − 68.458 = -36.960
- Signed miss = -35.00 − (-36.960) = 1.960
- Absolute miss = |1.960| = 1.960
The poll overstated the Democrat by 2.0 points and had the right leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 33766, race ID 9 (538 database).