The average income of 19 families who reside in a largemetropolitan East Coast city is $62,245. The standard deviation is$9695. The average income of 12 families who reside in a rural areaof the Midwest is $60,213, with a standard deviation of $2079. At α= 0.05, can it be concluded that the families who live in thecities have a higher income than those who live in the ruralareas?
calculate test statistics and round to 2 decimal places