Question

justin read in the newspaper that 50% of voters in his city were voting
o\ on a local initiative measure. the poll claimed a margin of error of ±4%. find the lower bound of the confidence interval. % question 4 2 pts justin read in the newspaper that 50% of voters in his city were voting
o\ on a local initiative measure. the poll claimed a margin of error of ±4%. justin wanted to know how many voters were polled and wrote an equation to solve. what answer should he have gotten?

Explanation:

Step1: Recall the formula for confidence interval bounds

The confidence interval is given by \(p\pm E\), where \(p\) is the proportion and \(E\) is the margin of error. The lower bound is \(p - E\).

Step2: Substitute the values

Here, \(p = 50\%=0.5\) and \(E = 4\% = 0.04\). So the lower bound is \(0.5-0.04=0.46 = 46\%\)

Answer:

\(46\)