Eleven children were assigned into 2 random groups. They are taught the basic concepts of multiplication by the same teacher, but using different methods. After the first week of instruction, the children were tested on the same 10 questions. The number of correct answers are show. Method A                     Method B Sally    4                      Olga                 9 Jim       3                      Orville 6 Abe      5                      Jackson 8 Pete      7                      Rachel 4 Nick     6                      Susan   7

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