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Mathematics, 24.04.2020 16:02 culturedxnat

Urban storm water can be contaminated by many sources, including discarded batteries. When ruptured, these batteries release metals of environmental significance.
A sample of 51 Panasonic AAA batteries gave a sample mean zinc mass of 2.06 g and a sample standard deviation of .141 g.
Does this data provide compelling evidence for concluding that the population mean zinc mass exceeds 2.0 g?

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