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In a metal fabrication process, metal rods are produced that have an average length of 20.4 feet with a standard deviation of 2.1 feet.

In a metal fabrication process, metal rods are produced that have an average length of 20.4 feet with a standard deviation of 2.1 feet. A quality control specialist collects a random sample of 49 rods and measures their lengths. What is the probability of observing a sample mean greater than 21 feet? Select one: 0.02275 0 0.61791 00.38209 0.97725

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