55% Obama
36% Romney
1% Others
8% Undecided
This survey was conducted by Gonzales Research & Marketing Strategies from September 17th through September 23rd, 2012. A total of 813 registered voters in Maryland who say they are going to vote in the November general election were interviewed by telephone. A cross-section of interviews was conducted in each jurisdiction within the state to reflect general election voting patterns.
The margin of error (MOE), according to customary statistical standards, is no more than plus or minus 3.5 percentage points. There is a 95 percent probability that the “true” figures would fall within this range if the entire survey universe were sampled. The margin for error is higher for any demographic subgroup, such as gender or race.
Patrick E. Gonzales graduated from the University of Baltimore in 1981 with a degree in political science. He began his career as an analyst with Mason-Dixon Opinion Research and is the former president of Mason-Dixon Campaign Polling.
http://marylandreporter.com/wp-content/uploads/2012/09/Gonzales-Maryland-Poll-September-2012-2.pdf
