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posted by Mary .
What statistical method(s) a researcher can use to determine if the mean body mass index of the population is the same for three groups of subjects (group i=diet restriction; group 2=exercise; group 3=none).
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What statistical method(s) a researcher can use to determine if the mean body mass index of the population is the same for three groups of subjects (group i=diet restriction; group 2=exercise; group 3=none). 
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