Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
-Of 138 randomly selected adults, 34 were found to have high blood pressure. Construct a 95% confidence interval for the true percentage of all adults that have high blood pressure.
A) $15.2 \%

Question

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
-Of 138 randomly selected adults, 34 were found to have high blood pressure. Construct a 95% confidence interval for the true percentage of all adults that have high blood pressure. 
A) $15.2 \% < \mathrm { p } < 34.1 \%$
B) $18.6 \% < p < 30.7 \%$
C) $16.1 \% < p < 33.2 \%$
D) $17.4 \% < p < 31.8 \%$

Quizplus · Accepted Answer

The sample proportion is 34/138. Using the formula for a confidence interval for a proportion and a 95% confidence level, the interval is calculated to be approximately $17.4\% < p < 31.8\%$.

Use the Given Degree of Confidence and Sample Data to Construct