NBC News/Marist sampled 603 likely voters on XXXXXXXXXXThey found that 44% said they would vote for Michelle Nunn. We want to construct a 95% confidence interval to estimate the true proportion of...

NBC News/Marist sampled 603 likely voters on 10-31-14. They found that 44% said they would vote for Michelle Nunn.

We want to construct a 95% confidence interval to estimate the true proportion of likely voters who will vote for Nunn.

What is the margin of error?