Among the 80 controls 35 reported drinking at least 4 cups


In a case/control study of patients with gallstones, information on coffee consumption was obtained.

Among the 80 controls, 35 reported drinking at least 4 cups of coffee per day, whereas 22 of the 82 cases drank 4 or more cups. Test whether cases and controls drink the same amount of coffee.

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Basic Statistics: Among the 80 controls 35 reported drinking at least 4 cups
Reference No:- TGS02193532

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