We plan to sample parents in order to construct a 99% confidence interval for the proportion who believe that physical education has a positive effect on academic performance. Estimate the sample size needed so that a 99% confidence interval will have a margin of error of 0.025.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
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We plan to sample parents in order to construct a 99% confidence interval for the proportion who
believe that physical education has a positive effect on academic performance. Estimate the
sample size needed so that a 99% confidence interval will have a margin of error of 0.025. 

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