How the poll was conducted

  • By: DAVE BRAUNGER
  • Updated: September 25, 2012 - 4:24 AM

The Star Tribune Minnesota Poll interviewed 800 likely Minnesota voters Sept. 17-19. The margin of sampling error is +-3.5 percentage points.

Star Tribune Minnesota Poll findings are based on interviews conducted Sept. 17-19 with 800 Minnesota likely voters via landline (80 percent) and cell phone (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: 41 percent Democrat, 28 percent Republican and 31 percent independent or other.

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.

Readers can e-mail questions to djmcgrath@startribune.com.

DEMOGRAPHICS OF THE RESPONDENTS:

- In terms of your political party identification, do you generally consider yourself DFL or Democrat, Republican or an independent?

DFL/Democrat 325 (41%)
Republican 226 (28%)
Independent/Other 249 (31%)
AGE: 18-34 114 (14%)
35-49 224 (28%)
50-64 244 (30%)
65+ 214 (27%)
Refused 4 (1%)
INCOME: <$25,000 62 (8%)
$25,000-$49,999 181 (23%)
$50,000-$74,999 142 (18%)
$75,000-$99,999 148 (18%)
$100,000+ 132 (16%)
Refused 135 (17%)
SEX: Male 399 (50%)
Female 401 (50%)
REGION: Hennepin/Ramsey 260 (33%)
Metro Suburbs 225 (28%)
Rochester/Southeast 90 (11%)
Southwest Minnesota 65 (8%)
Northwest Minnesota 80 (10%)
Duluth/Northeast 80 (10%)

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