Periodically, a town water department tests the the drinking water of homeowners for contaminants such as...

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Periodically, a town water department tests the the drinking water of homeowners for contaminants such as...

Periodically, a town water department tests the the drinking water of homeowners for contaminants such as lead. The lead levels in water specimens collected for a sample of 10 residents of the town had a mean of 3.2 mg/L and a standard deviation of 2.6 mg/L. Complete parts a throughc.

a.Construct a 90% confidence interval for the mean lead level in water specimens from the town.(______,______)

(Round to three decimal places as needed.)

math Statistics-And-Probability

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inlewal ampla Mean N1O

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