Determine the sample size for a on-line survey with a variability of 30% and a 95% confidence interval?   What sample size would you need for a 99% confidence interval?  a 90% confidence interval?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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Determine the sample size for a on-line survey with a variability of 30% and a 95% confidence interval?   What sample size would you need for a 99% confidence interval?  a 90% confidence interval?

 

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