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Question

   Please examine the distributions below. They represent scores on students' midterms in forensics. Each

class was taught by the same teacher, but she used a different teaching strategy. Different strategies may have produced different outcomes. Are the scores different? How would you rule out random chance in creating these distributions?


Class A Class B


100 100

92 95

85 93

81 90

80 89

71 82

71 80

67 79

61 78

57 77

56 76

55 76

52 75

51 69

45 63

42 57

41 56

40 55

38 54

34 48

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