You Wish to Construct a 90% Confidence Interval to Compare

question 33

Multiple Choice

You wish to construct a 90% confidence interval to compare two proportions.If we wish to obtain a margin of error of at most 0.05,what sample size should we take from each group? Assume equal sample sizes.

• A)1984
• B)271
• C)270
• D)542
• E)541