Using the z-distribution, the confidence interval for the population proportion is given by:
(0.2153, 0.4633).
<h3>What is the missing information?</h3>
This problem is incomplete, but researching it on a search engine, we have that the information is given as follows:
n = 56, x = 19, 95% confidence.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:
In which:
- is the sample proportion.
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 sample size and the estimate are given as follows:
Hence the bounds of the interval are given as follows:
The confidence interval for the population proportion is given by:
(0.2153, 0.4633).
More can be learned about the z-distribution at brainly.com/question/25890103
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