Shown here are retail price figures and quantity estimates for five different food commodities over 3 years. Use these data and a base year of 2011 to compute Un-weighted aggregate price indexes for this market basket of food. Using a base year of 2011, calculate Laspeyres price indexes and Paasche price indexes for 2012 and2013.

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2011 2012 2013 Item Price Quantity Price Quantity Price Quantity Margarine 1.26 21 1.32 23 1.39 22 (lb.) Shortening 0.94 5 0.97 1.12 4 (lb.) Milk (1/2 gal.) 1.43 70 1.56 68 62 65 Cola (2 lite 1.05 12 .02 13 1.25 11 Potato chips 2.81 27 2.86 29 2.99 28 (12 oz.)