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please explain Contaminated water: In a sample of 41 water specimens taken from a construction site, 28 contained detectable levels of lead. Part: 0 /

please explain

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Contaminated water: In a sample of 41 water specimens taken from a construction site, 28 contained detectable levels of lead. Part: 0 / 3 Part 1 of 3 (a) Construct a 99% confidence interval for the proportion of water specimens that contain detectable levels of lead. Round the answers to at least three decimal places. A 99% confidence interval for the proportion of water specimens that contain detectable levels of lead is

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