A margin of error within 3% with 90% confidence. We estimate that the population proportion is about

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A margin of error within ±3% with 90% confidence. We estimate that the population proportion is about 0.3.


What sample size is needed to give the desired margin of error in estimating a population proportion with the indicated level of confidence?

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Statistics Unlocking The Power Of Data

ISBN: 9780470601877

1st Edition

Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock

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