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.   z0.10 z0.05 z0.025 z0.01 z0.005 1.282 1.645 1.960 2.326 2.576   Use the table of common z-scores above. Round the final answer to three decimal places. Provide your answer below:   $p'=\ $p′= ​  $\sigma_{p'}\ =\ $σp′​ = ​  $z_{\frac{\alpha}{2}}\ =\ $zα2​​ = ​  (, )

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Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a survey…

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Q: What is the value of Z for this confidence interval?

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A: Zα/2  = 1.96

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.