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In: Statistics and Probability

Eric wants to estimate the percentage of elementary school children who have a social media account....

Eric wants to estimate the percentage of elementary school children who have a social media account. He surveys 450 elementary school children and finds that 280 have a social media account. Identify the values needed to calculate a confidence interval at the 99% confidence level. Then find the confidence interval.

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Eric wants to estimate the percentage of elementary school children who have a social media account....
Eric wants to estimate the percentage of elementary school children who have a social media account. He surveys 450 elementary school children and finds that 280 have a social media account. Identify the values needed to calculate a confidence interval at the 99% confidence level. Then find the confidence interval.
Eric wants to estimate the percentage of elementary school children who have a social media account....
Eric wants to estimate the percentage of elementary school children who have a social media account. He surveys 500 elementary school children and finds that 250 have a social media account. Identify the values needed to calculate a confidence interval at the 99% confidence level. Then find the confidence interval.
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