The width of a confidence interval estimate for a proportion will be:
A. narrower for 99% confidence than for 95% confidence
B. wider for a sample size of 100 than for a sample size of 50
C. narrower for 90% confidence than for 95% confidence
D. narrower when the sample proportion is 0.50 than when the sample proportion is 0.20.
C. 90% Confidence Interval would be narrower than a 95% ...
This solution provides a brief explanation for finding the width of a confidence interval.