Mathematics, 14.04.2020 23:49 hiji0206
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 is symmetric, there is approximately a 68.26% chance that a random sample of 16 cars will have a sample mean between 14 and 16 gallons.
a. True
b. False
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If the amount of gasoline purchased per car at a large service station has a population mean of 15 g...
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