Question: Five statistics professors are using the same textbook with the same syllabus and common exams. At the end of the semester, the department committee on

Five statistics professors are using the same textbook with the same syllabus and common exams. At the end of the semester, the department committee on instruction looked at aver- age exam scores. Does this sample provide sufficient evidence to conclude that there is a significant difference in treatment means?

Prof. Argand Prof. Blague Prof Clagmire Prof. Dross Prof. Ennuyeux Exam 1 80972.3 84.9 81.2 70.9 Exam 2 Exam 3 Final 75.5 79.0 69.9 74.6 76.0 78.0 78.7 79.6 77.8 76.5 75.0 74.1 70.3 73.7 73.9

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