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Researchers wish to determine if a new experimental medication will reduce the symptoms of allergy sufferers...

Researchers wish to determine if a new experimental medication will reduce the symptoms of allergy sufferers without the side effect of drowsiness. To investigate this question, the researchers give the new medication to 50 adults who suffer from allergies. Forty four of these adults report a significant reduction in their allergy symptoms without any drowsiness. This study could be improved by

A) including people who do not suffer from allergies in the study in order to represent a more diverse population

B) repeating the experiment with only the 44 adults who reported a significant reduction in their allergy symptoms without any drowsiness, and giving them a higher dosage this time.

C) using a control group

D) all of the above

E) A and B

math   Statistics-And-Probability   
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