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A factory produces bolts with a mean length of 5.0 cm and a standard deviation of 0.1 cm. You select a random sample from a
A factory produces bolts with a mean length of 5.0 cm and a standard deviation of 0.1 cm. You select a random sample from a batch and find that it has a length of 4.7 cm. Is this a surprising value? Explain your
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