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The average income of 15 families who reside in a large metropolitan East Coast city is $62,456. The standard deviation is $9652. The average income of 11 families who reside in a rural area of the Midwest is $60,213, with a standard deviation of $2009. At ? =0.05, can it be concluded that the families who live in the cities have a higher income than those who live in the rural areas? Use the P-value method.