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In the study described in Exercise 17.33, researchers also examined the effect of a nutrition program...

In the study described in Exercise 17.33, researchers also examined the effect of a nutrition program on performance of undergraduates on the Verbal GRE. The researchers found no evidence of improvement (P>0.5). The P-value refers to a null hypothesis of "no change" in GRE scores measured before and after the nutrition program. Explain clearly why this value provides no evidence of change.

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