What Influences the Sample Size? We examine the effect of different inputs on determining the sample size needed to obtain a specific margin of error when finding a confidence interval for a proportion. Find the sample size needed to give, with 99% confidence, a margin of error within +5% when estimating a proportion. First, find the sample size needed if we have no prior knowledge about the population proportion p. Then find the sample size needed if we have reason to believe that p a 0.7. Finally, find the sample size needed if we assume p 2 0.9. Round your answers up to the nearest integer. Population proportion Sample Size No knowledge: i 0.7: i 0.9: i

What Influences the Sample Size? We examine the effect of different inputs on determining the sample size needed to obtain a specific margin of error when finding a confidence interval for a proportion. Find the sample size needed to give, with 99% confidence, a margin of error within +5% when estimating a proportion. First, find the sample size needed if we have no prior knowledge about the population proportion p. Then find the sample size needed if we have reason to believe that p a 0.7. Finally, find the sample size needed if we assume p 2 0.9. Round your answers up to the nearest integer. Population proportion Sample Size No knowledge: i 0.7: i 0.9: i

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.7: Probability

Problem 4SE: What is the difference between events and outcomes? Give an example of both using the sample space...

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