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A study found that highway drivers in one state traveled at an average speed of 59.4 miles per hour (MPH). Assume the population standard deviation

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A study found that highway drivers in one state traveled at an average speed of 59.4 miles per hour (MPH). Assume the population standard deviation is 6.9 MPH. Complete parts a through d below. a. What is the probability that a sample of 30 ofthe drivers will have a sample mean less than 58 MPH? PG:

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