An ethanol raikoad tariff is a fee charged for shipments of ethanol on public railroads. An agricultural association publishes tariff rates for rairoad-car shipments of ethanol. Assuming that the standard deviation of such tariff rates is $1050, determine the probability that the mean tariff rate of 550 randomly selected railroad-car shipments of ethanol will be within $90 of the mean tariff rate of all railroad-car shipments of ethanol Interpret your answer in terms of sampling error. The probability is (Round to three decimal places as needed)

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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An ethanol raikoad tariff is a fee charged for shipments of ethanol on public railroads. An agricultural association publishes tariff rates for railroad-car shipments of
ethanol. Assuming that the standard deviation of such tariff rates is $1050, determine the probability that the mean tariff rate of 550 randomly selected railroad-car
shipments of ethanol will be within $90 of the mean tariff rate of all railroad-car shipments of ethanol Interpret your answer in terms of sampling error.
The probability is D
(Round to three decimal places as needed)
Transcribed Image Text:An ethanol raikoad tariff is a fee charged for shipments of ethanol on public railroads. An agricultural association publishes tariff rates for railroad-car shipments of ethanol. Assuming that the standard deviation of such tariff rates is $1050, determine the probability that the mean tariff rate of 550 randomly selected railroad-car shipments of ethanol will be within $90 of the mean tariff rate of all railroad-car shipments of ethanol Interpret your answer in terms of sampling error. The probability is D (Round to three decimal places as needed)
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