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A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 131.3-cm and a standard deviation of
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 131.3-cm and a standard deviation of 0.9 cm. For shipment, 18 steel rods are bundled together. Find the probiability that the average length of a randomly selected bundle of steel rods is between 130.7 cm and 131.1-cm. P(130.7-cm #131.1-cnm)-0264
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Elementary Statistics
Authors: Neil A. Weiss
8th Edition
321691237, 978-0321691231
