What level must mean reduce third quartile

Reference no: EM13128879

Suppose that weekly consumption of gasoline for motor vehicle travel for drivers in North America is approximately normally distributed, with a mean of 20 gallons a week and a standard deviation of 6 gallons. Assuming that the standard deviation and the normal shape are unchanged, to what level must the mean reduce so that 20 gallons per week is the third quartile rather than the mean?

Reference no: EM13128879

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