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About this Poll
This Rocky Mountain Poll - Arizona (2015-IV-03), is based on 700 interviews with heads
of household statewide, including 577 registered voters, (226 Republican) conducted between October
24 and November 5, 2015. Interviewing was conducted in both English and Spanish by professional
interviewers of the Behavior Research Center on both land lines and cell phones. Where necessary, figures
for age, sex, and race were weighted to bring them into line with their actual proportion in the population. In
a sample of this size, one can say with a 95 percent certainty that the results have a statistical precision of plus or
minus 4.2 percent of what they would have been had the entire adult voter population been surveyed and plus or
minus 6.7 percent among Republican voters. The Rocky Mountain Poll is conducted by the Behavior
Research Center of Arizona and is an independent and non-partisan research program sponsored by the
Center.