What is the average difference between the price of a name brand soup and the price of store brand soup? To obtain an estimate, an analyst randomly samples eight stores. Each store sells its own brand and the national brand name. The prices of a can of name brand tomato soup and a can of the store brand tomato soup follow.
Store Name Brand Store Brand
1 54c 49c
2 55 50
3 59 52
4 53 51
5 54 50
6 61 56
7 51 47
8 53 49
