The width of a confidence interval estimate for a proportion will be:
A) narrower for 90% confidence than for 95% confidence.
B) wider for a sample size of 100 than for a sample size of 50.
C) narrower for 99% confidence than for 95% confidence.
D) narrower when the sample proportion if 0.50 than when the sample proportion is 0.20.
Correct Answer:
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