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Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.4 and a mean diameter of 212 inches. If

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Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.4 and a mean diameter of 212 inches. If 80 shafts are sampled at random from the batch, what is the probability that the mean diameter of the sample shafts would be less than 211.9 inches? (Round your answer to 4 decimal places)

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