You Wish to Construct a 90% Confidence Interval to Compare

question 31

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 0.04,what sample size should we take from each group? Assume equal sample sizes.

• A)423
• B)846
• C)1984
• D)845
• E)422

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