Question: Note : Decide fi rst whether data are quantitative or qualitative. Unless mentioned otherwise, no assumption has been seriously vi olated, and therefore the appro priate test should be selected from among t , F , or c2 tests. Specify the precise form of the test. For example, specify that the t test is for two population means with related samples, or that the c2 test is for two variables, or that the F test is for repeated measures.

A psychologist wishes to evaluate the effectiveness of relaxation training on the subsequent performance of college students in a public speaking class. After being matched on the basis of the quality of their initial speeches, students are randomly assigned either to receive relaxation training or to serve in a control group. Evaluation is based on scores awarded to students for their speeches at the end of the class.

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