The Course Manager wants to use a new tutorial to teach the students about business ethics. As an experiment she 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 created by the faculty, or a well known tutorial by the ABC Company. After completing their assigned tutorial, the students are given a Business Ethics test. At the .01 significance level, can she conclude that there is a difference between how well the different tutorials work for the students?

Students Grades on the Business Ethics Test following the Tutorial

PowerPoint Tutorial |
AuthorGen Tutorial |
ABC Tutorial |

68 |
79 |
75 |

85 |
86 |
83 |

91 |
82 |
78 |

87 |
92 |
86 |

88 |
91 |
81 |

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