Question: Twelve statistics students suffering from severe test-anxiety were recruited to participate in a study to evaluate a therapy designed to reduce their fear of tests. Half of the students were randomly assigned to an experimental condition (Group 1) and were trained to relax during mock exams using transcendental meditation. Half were assigned to a control condition (Group 2) that received no relaxation training. After eight weeks both groups were given a statistics exam. With alpha set at .05, test to see if the two groups differed significantly on the exam.

Group 1 Group 2

40 20

45 20

50 25

55 30

65 35

65 40

A1. State the Null and Alternative Hypothesis

A2. df and t _cv

A3. t =

A4. Do you reject or accept the Ho?

A5. Full discuss all of the following:

1. The goals of the study,
2. The results,
3. Conclusions (what is the affect of the treatment on exam scores?)
4. Recommendations that can be drawn from the study.

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