Asked May 28, 2019

A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 10% margin of error at a 99% confidence level, what size of sample is needed?


Expert Answer

Step 1

As there is no any estimates available, the sample proportion is assumed to be 0.50, that is, 50%.

Here, the margin ...


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Hypothesis Testing

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