6) Two sections of a class in statistics were taught by two different methods. Students' scores on a standardized test are shown below. Do the results present evidence of a difference in the effectiveness of the two methods? (Use a = 0.01.) Class A 74 97 79 88 78 93 76 75 82 86 100 94 78 92 94 78 71 85 70 Class B 79 76 93 82 69 84

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A: The correlation coefficient is 0.8137.

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