Question

Given the following Confidence Interval for the population proportion p : (0.607, 0.667),

find the margin of error used to obtain it.

Answer 1

0.03

Explanation:

So we can tell that our population parameter is p-hat = 0.637, which is 0.03 apart from the upper and lower bounds of the confidence interval. This means that 0.03 is our margin of error, or how much room there is for error.