Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
n=130, x=69 ; 90% confidence
A) $0.458

Question

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
 n=130, x=69 ; 90% confidence
A) $0.458 < p < 0.604$
B) $0.461 < p < 0.601$
C) $0.459 < p < 0.603$
D) $0.463 < p < 0.599$

Quizplus · Accepted Answer

The sample proportion is $ \hat{p} = \frac{69}{130} \approx 0.531 $. Using the formula for the confidence interval for a proportion and a 90% confidence level, the interval is calculated as $0.459 < p < 0.603$.

Use the Given Degree of Confidence and Sample Data to Construct