In the days before the 2016 presidential election, the Des Moines Register asked 1072 randomly selected voters in Iowa who they were going to vote for in the 2016 presidential election. A 95% confidence interval for the true proportion of voters who were going to vote for Donald Trump was 0.425 to 0.495.   a. Interpret the confidence interval.    b. Calculate the point estimate  used to create this confidence interval.   c. Calculate the margin of error used to create this confidence interval.   d. According to this poll, was there convincing evidence that Donald Trump would receive more than 50% of the votes and win Iowa

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