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2002 Senate · NJ

Rutgers University Eagleton Center for Public Interest Polling · fieldwork ended 2002-10-29 (7 days before the election) · 458 respondents · Live Phone

The poll said

Democrat 52% · Republican 40%

D+12.0

The certified result

Democrat 53.88% · Republican 43.95%

D+9.9

The arithmetic

  1. Poll margin = 52 − 40 = 12.00
  2. Actual margin = 53.876 − 43.948 = 9.928
  3. Signed miss = 12.00 − (9.928) = 2.071
  4. Absolute miss = |2.071| = 2.071

The poll overstated the Democrat by 2.1 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 25604, race ID 1670 (538 database).