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

Question

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.

Use the table of common z-scores

Statistics and Probability

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