Answer:
The magin of error is 0.0552 = 5.52 percentage points.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
For this problem, we have that:
99.5% confidence level
So , z is the value of Z that has a pvalue of , so .
M.E:
The magin of error is 0.0552 = 5.52 percentage points.