. the 2004 presidential election exit polls from the critical state of ohio provided the following results. the exit polls had 768 of whom were college graduates. of the college graduates, 412 voted for george bush. (a) calculate a two-sided 95% ci for the proportion of college graduates in ohio who voted for george bush. (b) calculate a 90% lower confidence bound for the proportion of college graduates in ohio who didn't vote for george bush.