UMUC wants to use a new tutorial to teach the students about business ethics. As an experiment, the administrator randomly selected 15 students and randomly assigned them to one of three groups which include either a PowerPoint presentation created by the faculty, AuthorGen Presentation company. After completing their assigned tutorial, the students are given a Business Ethics test. At the .01 significance level, can UMUC conclude that there is a difference between how well the different tutorials work for the students?

PowerPoint Tutorial AuthorGen Tutorial ABC Tutorial

(X1) (X2) (X3)

68 79 75

85 86 83

91 82 78

87 92 86

88 91 81