Answer:
We must sample 2305 people.
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:

92% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
Number of people who must be surveyed:
We must sample n people.
n is found when

So






Rounding up
We must sample 2305 people.