HELENA — The Gazette State poll was conducted March 14-16 by Mason-Dixon Polling & Research Inc. of Washington, D.C., for The Billings Gazette, Montana Standard of Butte, Helena Independent Record, Missoulian and Ravalli Republic.
A total of 625 registered Montana voters were interviewed statewide by telephone. All said they regularly vote in state elections.
Pollsters interviewed 320 women for 51 percent of the sample and 305 men for 49 percent.
The poll has a margin of error of plus or minus 4 percentage points. The margin of error is higher for any subgroup such as a gender sampling.
Those interviewed were selected by random variation of the last four digits of telephone numbers. A cross section of telephone exchanges was used to ensure an accurate reflection of the state. Quotas were assigned to reflect the turnout by county.
http://billingsgazette.com/news/state-and-regional/montana/article_98e0af0e-394e-55e2-aca7-f45be45f0ad3.html
