Solution) The average zinc concentration taken from a sample of zinc measurements in 25 different locations is
Question: The average zinc concentration taken from a sample of zinc measurements in 25 different locations is found to be 3.0 ounces per gallon. Find the 95 % confidence interval for the mean zinc concentration in the river. Assume that the population is normally distributed with a standard deviation of 0.2.
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Deliverables: Word Document
Deliverables: Word Document
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