On October 5 – 8, 2012, Gravis Marketing, a non-partisan research firm, conducted a survey of 1,122 likely voters in Michigan regarding their vote for a given Presidential candidate.
Overall, Obama holds a 46.0% to 44.4% lead among likely voters and a 47.3% to 42.3% among registered voters. The poll carries a margin of error of plus or minus 3.2%. The total number of registered votes is 1387.
Michigan Poll Shows Obama Lead-Gravis Marketing -

This poll is of 1,122 likely voters, but also provides a breakdown among registered voters. What was the number of likely voters in that sample?
ReplyDeleteOops, I mean what was the number of registered voters in that sample.
DeleteStephen, thanks for pointing that out, it's 1387 Registered Voters
ReplyDeleteThanks for the fast answer.
ReplyDeleteLast question -- was the 3.2% margin of error referring to the likely or registered voter model? And what was the MoE for the other one?