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Using the z-distribution, the 95% confidence interval for the proportion is given as follows:
(0.4576, 0.5824).
<h3>What is a confidence interval of proportions?</h3>A confidence interval of proportions is given by:
In which:
is the sample proportion.
- z is the critical value.
- n is the sample size.
In this problem, we have a 95% confidence level, hence, z is the value of Z that has a p-value of
, so the critical value is z = 1.96.
The other parameters for the interval are given as follows:
.
The lower and upper bound of the interval, respectively, are given by:
More can be learned about the z-distribution at brainly.com/question/25890103
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