Due to ever-increasing food costs, consumers are becoming more discerning in their choice of supermarkets. It is usually more convenient to shop at just one market, as opposed to buying different items at different markets. Thus, it would be useful to compare the mean food expenditure for a market basket of food items from store to store. Since there is a great deal of variability in the prices of products sold at any supermarket, we will consider an experiment that blocks on products.

Choose three (or more) supermarkets in your area that you want to compare. Then choose approximately 10 (or more) food products you typically purchase. For each food item, record the price each store charges in the following manner:

Use the data you obtain to test H0: Mean expenditures at the stores are the same.
Ha: Mean expenditures for at least two of the stores are different.
Also, test to determine whether blocking on food items is advisable in this kind of experiment. Interpret the results of your analysis fully

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Food Item 1 Food Item 2 Food Item 10 Price store 1 Price store 1 Price store 2 Price store 3 Price store 2 Price store 1 Price store 2 Price store 3 Price store 3