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Constructing a confidence interval for a single population mean, sigma known.
The Fluffy Lump is a cat toy company that sells catnip by the pound. Although the boxes are advertised at 16oz., a random sample of 50 boxes yielded a mean of 16.2 oz and the asumed population standard deviation of 0.04 oz. Construct a 95% confidence interval for the population mean weight of boxes of catnip.
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