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2006 Senate · PA

Quinnipiac University · fieldwork ended 2006-10-26 (12 days before the election) · 933 respondents · Live Phone

The poll said

Democrat 52% · Republican 42%

D+10.0

The certified result

Democrat 58.64% · Republican 41.28%

D+17.4

The arithmetic

  1. Poll margin = 52 − 42 = 10.00
  2. Actual margin = 58.637 − 41.283 = 17.354
  3. Signed miss = 10.00 − (17.354) = -7.354
  4. Absolute miss = |-7.354| = 7.354

The poll overstated the Republican by 7.4 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 24449, race ID 1603 (538 database).