12 May Hypothesis Testing on Multiple Populations 3. Th
Hypothesis Testing on Multiple Populations 3. The ABC Tutoring Director wants to use a new tutorial to teach middle school students about basic algebraic techniques. As an experiment she randomly selected 18 students and randomly assigned them to one of three groups which include either a PowerPoint presentation created by the classroom teachers, WebEx Presentation created by an outside contractor, or a well known tutorial by the EducTrain company. After completing their assigned tutorial, the students are given a basic algebraic methods quiz. At the .01 significance level, can she conclude that there is a difference between how well the different tutorials work for the middle school students? Students Grades on the Algebraic Methods Quiz following the Tutorial Power Point Tutorial WebEx Tutorial EducTrain Tutorial 88 79 96 94 86 78 91 75 89 88 83 96 98 74 97 84 72 90
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