A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 5% margin of error at a 90% confidence level, what size of sample is needed? Give your answer in whole people.
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 5% margin of error at a 90% confidence level, what size of sample is needed? 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
Section: Chapter Questions
Problem 7CR
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Transcribed Image Text:A political candidate has asked you to conduct a poll to determine what percentage of people
support her.
If the candidate only wants a 5% margin of error at a 90% confidence level, what size of sample is
needed?
Give your answer in whole people.
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