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The Graduate Record Exam (GRE) has mean = 150. You wish to know whether meditating before the exam affects score (perhaps meditation will increase scores,
The Graduate Record Exam (GRE) has mean = 150. You wish to know whether meditating before the exam affects score (perhaps meditation will increase scores, perhaps it will decrease them). You randomly select 20 participants, train them in meditation, and have them take the GRE. (a) State the null hypothesis in plain English and then in symbols. (b) Is this test directional or nondirectional? Why
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A Survey Of Mathematics With Applications
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
11th Edition
0135740460, 978-0135740460
