It has been reported that the average operating cost of an MD-80 jet airliner is $2,087 per
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It has been reported that the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed with a standard deviation of $175 per hour. What cost would 20% of the operating costs be less than? What cost would 65% of the operating costs be more than? What cost would be more than 85% of operating costs?
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Business Statistics For Contemporary Decision Making
ISBN: 9781119577621
3rd Canadian Edition
Authors: Ken Black, Ignacio Castillo
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