To discourage cheating a professor makes throe different ver

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