Women's shoe sizes are normally distributed with a mean of size 7.5 and a standard deviation

of 1.5 shoe sizes.

a.) If a store owner wants to stock shoes that fit 68% of women, what range of sizes

should the owner order?(6 to 9, 4,5 to 10,5, 3 to 12 or 1.5 to 7.5)

b.) If a store owner wants to stock shoes that fit 95% of women, what range of sizes

should the owner order?(4.5 to 10.5, 3 to 12, 1.5 to 7 or 6 to 9)