Answer to Question #208016 in Statistics and Probability for James

Question

Students are randomly assigned to four Math classes. Each class is taught using a

different method. At the end of the course, a comprehensive examination is given, and

the results are shown at the table that follows. At α = 0.05, is there a significant

difference in the means of the examination results?

Class A| Class B| Class C| Class D|

87 82 97 82

92 78 90 78

61 41 83 41

83 65 92 83

47 63 91 47

87 82 97 87

92 78 90 97

61 41 83 90

83 65 92 83

47 63 91 92