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Two assess the accuracy of the laboratory scale, a standard weight that is known to weigh 1 gram is repeatedly weighed a total of n
Two assess the accuracy of the laboratory scale, a standard weight that is known to weigh 1 gram is repeatedly weighed a total of n times until the mean of the weighings is computed.Suppose the scale readings are normally distributed with an unknown mean and a population standard deviation = 0.01 grams.How large should n be so that a 95% confidence interval for has a margin of error equal to 0.0001?
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