Ahealthysystolicbloodpressureis120 mm Hg or less.Astudytookavolunteersampleof subjectswithhigh-bloodpressureandaskedthemtowalkfor30minutesatlunchtimeeach day.Afteronemonth,theirmeansystolicbloodpressurefellfrom150to140.Explainhowthis could merelyreflectregressiontowardthemean.
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Ahealthysystolicbloodpressureis120 mm Hg or less.Astudytookavolunteersampleof subjectswithhigh-bloodpressureandaskedthemtowalkfor30minutesatlunchtimeeach day.Afteronemonth,theirmeansystolicbloodpressurefellfrom150to140.Explainhowthis could merelyreflectregressiontowardthemean.
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Foundations Of Statistics For Data Scientists With R And Python
ISBN: 9780367748456
1st Edition
Authors: Alan Agresti
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