A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate wants a 5% margin of error at a 99% confidence level, what sample size is needed? Use technology to find the z-score and do not round between steps. Make sure you use the correct rounding rule for samples size, and give your answer in whole people.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 5E
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A political candidate has asked you to conduct a poll to determine what percentage of people support her.
If the candidate wants a 5% margin of error at a 99% confidence level, what sample size is needed?
Use technology to find the z-score and do not round between steps. Make sure you use the correct rounding
rule for samples size, and give your answer in whole people.
Transcribed Image Text:A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate wants a 5% margin of error at a 99% confidence level, what sample size is needed? Use technology to find the z-score and do not round between steps. Make sure you use the correct rounding rule for samples size, and give your answer in whole people.
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