2006 House · WA-8
RT Strategies · fieldwork ended 2006-10-25 (13 days before the election) · 1,004 respondents · Live Phone
The poll said
Democrat 49% · Republican 47%
D+2.0
The certified result
Democrat 48.54% · Republican 51.46%
R+2.9
The arithmetic
- Poll margin = 49 − 47 = 2.00
- Actual margin = 48.540 − 51.460 = -2.920
- Signed miss = 2.00 − (-2.920) = 4.920
- Absolute miss = |4.920| = 4.920
The poll overstated the Democrat by 4.9 points and had the wrong leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 64246, race ID 4012 (538 database).