Mathematics, 27.11.2019 02:31, hardwick744

If the amount of gasoline purchased per car at a large service station has a population mean of 15 gallons and a population standard deviation of 4 gallons and it is assumed that the amount of gasoline purchased per car when graphed is symmetrical, then there is approximately a 68.26% chance that a random sample of 16 cars will have a sample mean between 14 and 67 gallons.
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If the amount of gasoline purchased per car at a large service station has a population mean of 15 g...