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To discourage cheating, a professor makes throe different versions of an exam. For the
105,student in class, she makes 35 copies of each version. The 105 exams are randomly
scrambled, and one copy is given lo each student. After the exam, the professor is concerned that
one version might have been easier than the others. She uses a one-way ANOVA to test whether
the average score was different for the three versions. The ANOVA table and a below of the
results are below.
Solution
Against the alternative hypothesis

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To discourage cheating, a professor makes throe different versions of.pdf

  • 1. To discourage cheating, a professor makes throe different versions of an exam. For the 105,student in class, she makes 35 copies of each version. The 105 exams are randomly scrambled, and one copy is given lo each student. After the exam, the professor is concerned that one version might have been easier than the others. She uses a one-way ANOVA to test whether the average score was different for the three versions. The ANOVA table and a below of the results are below. Solution Against the alternative hypothesis