How the poll was conducted
- March 2, 2013 - 10:54 PM
Today’s Star Tribune Minnesota Poll findings are based on interviews conducted Feb. 25-27 with 800 Minnesota adults via land-line (80 percent) and cellphone (20 percent). The poll was conducted by Mason-Dixon Polling and Research Inc.
Results of a poll based on 800 interviews will vary by no more than 3.5 percentage points, plus or minus, from the overall population 95 times out of 100. Margins are larger for groups within the sample, such as Democrats and Republicans.
The self-identified party affiliation of the random sample is: 35 percent Democrat, 27 percent Republican, 30 percent independent or other party and 8 percent who said “none.”
Sampling error does not take into account other sources of variation inherent in public opinion surveys, such as non-response, question wording or context effects. In addition, news events may have affected opinions during the period the poll was taken.
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