Suppose that a survey reported that 55% of respondents favored gun control, with a margin of error of 6 3 percentage points.
a. What was the approximate size of the sample?
b. What is an approximate 95% confidence interval for the percentage of the corresponding population who favor gun control?
c. Based on the material in this chapter, write a statement interpreting the interval you found in part (b) that could be understood by someone with no training in statistics.