2000 Senate · MI
Scott Rasmussen (Rasmussen Reports) · fieldwork ended 2000-10-18 (20 days before the election) · 626 respondents · IVR
The poll said
Democrat 34% · Republican 53%
R+19.0
The certified result
Democrat 49.48% · Republican 47.86%
D+1.6
The arithmetic
- Poll margin = 34 − 53 = -19.00
- Actual margin = 49.475 − 47.861 = 1.614
- Signed miss = -19.00 − (1.614) = -20.614
- Absolute miss = |-20.614| = 20.614
The poll overstated the Republican by 20.6 points and had the wrong leader.
Where these numbers come from
Poll and result: 538 raw_polls.csv. Poll ID 63599, race ID 1694 (538 database).