To test whether there is a significant mean difference among the three.
The Course Manager for AMBA 601 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 .05 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
|
|
65
|
79
|
71
|
|
85
|
86
|
83
|
|
90
|
82
|
75
|
|
87
|
90
|
86
|
|
86
|
91
|
81
|