Ascientist wants to know if consuming fast food increases obesity in teens. he interviews 500 nutritionists, and 450 of them believe fast food consumed more than once a week increases obesity. the scientist concludes that consumption of fast food increases obesity. why is the scientist's conclusion most likely unreliable? the data about the nutrition of fast food is inaccurate. the results of the investigation cannot be repeated. the survey introduced biased information. very few people were interviewed.