You want to survey 120 teachers in a school district that has 200 elementary teachers (i.e., 160 women and 40 men), 100 junior high teachers (i.e., 60 women and 40 men), and 100 high school teachers (i.e., 40 women and 60 men). How many men and women from among the elementary teachers would you choose for a proportional stratified sample?
a. 30 women and 30 men c. 48 women and 12 men
b. 18 women and 12 men d. 60 women and 15 men
C
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