Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
-Of 346 items tested, 12 are found to be defective. Construct the $98 \%$ confidence interval for the proportion of all such items that are defective.
A) $0.0345

Question

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
-Of 346 items tested, 12 are found to be defective. Construct the $98 \%$ confidence interval for the proportion of all such items that are defective.
A) $0.0345 <$ p $< 0.0349$
B) $0.0110 < p < 0.0584$
C) $0.0118 < p < 0.0576$
D) $0.0154 < p < 0.0540$

Quizplus · Accepted Answer

The sample proportion is 12/346. Using the formula for a confidence interval for a proportion and a 98% confidence level, the interval is calculated as $0.0118 < p < 0.0576$.

Use the Given Degree of Confidence and Sample Data to Construct