In the 1992 U.S. presidential election, Bill Clinton received 43% of the vote compared to 38% for George H. W. Bush and 19% for Ross Perot. Suppose we had taken a random sample of 100 voters in an exit poll and asked them for whom they had voted. In 95% of such polls, our sample proportion of voters for Clinton should be between what two values that are equidistant from the expected value? How would you solve for the standard Deviation for this problem?