Can there be any doubt that supporters of both tickets included a mixutre of the well-informed and the woefully ignorant?

There are a lot of dumb people out there, and no politician of any persuasion would, or should, refuse their votes.

Couldn't a different set of questions be assembled to "prove" that those who voted for McCain/Palin were the more ignorant group?

For example:

Sen. Obama is a Muslim: true or false?

Not only was a significant portion of the GOP voting block ignorant of the correct answer, they were actively persuaded of such untruths by varous robocallers, etc., who may not have had any official connection to the campaign or the party, but who were participating in the contest for their own reasons. The dumb and gullible were, and will continue to be, the ripest targets for such dirty tricks.