We Have Calculated a Confidence Interval Based on a Sample $n = 100 .$

question 39

Multiple Choice

We have calculated a confidence interval based on a sample of size $n = 100 .$ Now we want to get a
Better estimate with a margin of error that is only one-fourth as large. How large does our new
Sample need to be?

• A) 1600
• B) 25
• C) 400
• D) 50
• E) 200

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