Assume the given distributions are normal. The mean income per household in a certain state is $9500 with a standard deviation of $1750. The middle 95% of incomes are between what two values?
A. $5422 and $13,578
B. $6070 and $12,930
C. $6621 and $12,379
D. $7260 and $11,740
E. $8049 and $10,951