Here is kind of an interesting poll number. Seven percent know facts that don't exist, but think they're informed.
Fastow, the Enron ex-exec with the most indictments against him, was polling to see whether he could get a change of venue, due to most people in Houston already thinking he's guilty.
However, in testing control samples from three cities, it was found that 7% of the people (plus or minus 1%) sampled believed they knew about a fictitious executive at a fictitious company under indictment (of those, ~ 1/3 thought he was guilty!).
So, if we ever get Dubya's numbers down to 7%, I'll have a pretty good idea where we might find some overlap.
(Former Enron Chief Financial Officer Andrew) Fastow hired Paul Strand, a political science professor at San Diego State University in California who has done surveys for 25 years, to gauge the awareness of and predisposition toward the case. Strand made random calls in the federal judicial districts in question, excluding felons and screening for registered voters, from whom jurors are picked. (snip) The bottom line was that of all those questioned in June, not just those aware of the case, 50 percent in Houston thought Fastow likely or definitely guilty compared to 48 percent in Austin and 38 percent in New Orleans.
As a control question those polled were asked if they were aware of criminal charges against the fictitious "Bryant Heathrow, the Chief Executive Officer of General Ordinance Corp." Results showed that between 6 percent and 8 percent of those polled said they were aware of the fictitious defendant. Of those claiming such awareness, 29 percent in Houston and Austin and 43 percent in New Orleans thought the fictitious CEO was probably or definitely guilty.
http://www.chron.com/cs/CDA/ssistory.mpl/business/2199439