OpenStax, Introductory Statistics 2e §8.3 A Population Proportion · Try It 6 · Statistics · Confidence intervals

A Population Proportion · Try It 6

Suppose an internet marketing company wants to determine the current percentage of customers who click on ads on their smartphones. How many customers should the company survey in order to be 90% confident that the estimated proportion is within five percentage points of the true population proportion of customers who click on ads on their smartphones?

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OpenStax, Introductory Statistics 2e · §8.3 A Population Proportion · Try It 6

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