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2012 Senate · NM

Public Policy Polling · fieldwork ended 2012-10-23 (14 days before the election) · 727 respondents · IVR · partisan sponsor (DEM)

The poll said

Democrat 52% · Republican 44%

D+8.0

The certified result

Democrat 51.01% · Republican 45.28%

D+5.7

The arithmetic

  1. Poll margin = 52 − 44 = 8.00
  2. Actual margin = 51.008 − 45.278 = 5.730
  3. Signed miss = 8.00 − (5.730) = 2.269
  4. Absolute miss = |2.269| = 2.269

The poll overstated the Democrat by 2.3 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 30355, race ID 1491 (538 database).