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The average annual amount American households spend on daily transportation is $6312 (Money, August 2001). Assume that the amount spent is normally distributed. a) Suppose
The average annual amount American households spend on daily transportation is $6312 (Money, August 2001). Assume that the amount spent is normally distributed. a) Suppose you learn that 5% of American households spend less than $1000 for daily transportation. What is the standard deviation of the amount spent? b) What is the probability that a household spends between $4000 and $6000? c) What is the range of spending for the 3% of households with the highest daily transportation cost?
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