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2022 Senate · AZ

Research Co. · fieldwork ended 2022-11-05 (3 days before the election) · 450 respondents · Online Panel

The poll said

Democrat 51% · Republican 47%

D+4.0

The certified result

Democrat 51.40% · Republican 46.51%

D+4.9

The arithmetic

  1. Poll margin = 51 − 47 = 4.00
  2. Actual margin = 51.395 − 46.507 = 4.888
  3. Signed miss = 4.00 − (4.888) = -0.887
  4. Absolute miss = |-0.887| = 0.887

The poll overstated the Republican by 0.9 points and had the right leader.

Where these numbers come from

Poll and result: 538 raw_polls.csv. Poll ID 81581, race ID 8919 (538 database).