The data to the right compared the price of some kitchen staples at four different supermarkets located in the same city. Complete parts (a) through...

The data to the right compared the price of some kitchen staples at four different supermarkets located in the same city. Complete parts (a) through (d).

Item    A    B    C    DHalf-gallon_Milk    1.94    2.29    1.52    1.33Dozen_Eggs    2.28    2.33    1.56    1.69Head_of_Lettuce    1.29    1.95    1.55    1.32Ground_Beef_1_lb    3.66    5.09    4.06    3.56Apples_1_lb    1.05    1.93    1.96    1.41Whole_Chicken    1.53    2.12    1.28    1.53

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