Confidence interval for the true proportion
In a random sample of 200 people 60 were found to participate. A two-sided 95% confidence interval for the true proportion of employees who participate is:
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The image of the public library is constantly changing, and their online services continue to grow. Usage of the library's home page grew by 17% during the past 12 months. It has been estimated that the current average length of a visit to the lib
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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