A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll, n=918 and x=521 who said​ "yes." Use a 90% confidence level. B) Identify the value of the margin of error E.
C) construct the confidence interval.

B) The margin of error is 0.0269.

C) The confidence interval is (0.5406, 0.5944).

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:

In the​ poll, n=918 and x=521 who said​ "yes."

This means that

90% confidence level

So , z is the value of Z that has a pvalue of , so .

B) Identify the value of the margin of error E.

The margin of error is 0.0269.

C) construct the confidence interval.

So

The confidence interval is (0.5406, 0.5944).

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: