Mathematics, 14.07.2019 18:00, lilquongohard

The length of needles produced by a machine has standard deviation of 0.01 inches. assuming that the distribution is normal, how large a sample is needed to determine with a precision of ±0.005 inches the mean length of the produced needles to 95% confidence?

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The length of needles produced by a machine has standard deviation of 0.01 inches. assuming that the...