Sunday, December 4, 2011

Question about the null and alternative hypothesis?

State the Null and Alternative Hypothesis for the following problem:





A small study was done to determine whether group exercise would reduce stress reactivity ( how much a person psychologically reacts to stress such as with their heart rate increasing and producing stress related hormones). Stress reactivity measured on a 10 point scale was assessed (high numbers indicate more stress). Stress pre and post interventions were completed.|||umm , i dont know .. sorry

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