[See Steps] The mean weight of trucks traveling on a particular section of I-475 is not known. A state highway inspector needs an estimate of the mean.
Question: The mean weight of trucks traveling on a particular section of I-475 is not known. A state highway inspector needs an estimate of the mean. He selects a random sample of 49 trucks passing the weighing station and finds the mean is 15.8 tons, with a standard deviation of the sample of 4.2 tons. What is probability that a truck will weigh less than 14.3 tons?
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