In a scientific study of racehorses that were fed an iron rich diet for six months, 75% of the horses showed an increase in track speed within 90 days. That this improvement could have happened randomly or by chance was ruled out with a high degree of confidence. If the above statements are true, the study's statistical findings confirm:
the horses in the study were racehorses and the findings do not apply to horses in general.
iron rich feed is associated with an increased track speed in racehorses.
regulations regarding the type of dietary intake for racehorses should be enforced.
regular, non-iron enriched feed causes decreased track speed in racehorses.
The Correct Answer is B
A. the horses in the study were racehorses and the findings do not apply to horses in general: The study specifically involved racehorses, so this statement is true, but it doesn’t directly address the core finding of the study, which is the relationship between iron-rich diet and increased track speed.
B. iron rich feed is associated with an increased track speed in racehorses: The study shows that 75% of the horses showed improved track speed after receiving an iron-rich diet, indicating an association between the two variables.
C. regulations regarding the type of dietary intake for racehorses should be enforced: The study doesn’t suggest that regulations are necessary; it only shows an association. The study does not provide enough information to make regulatory recommendations.
D. regular, non-iron enriched feed causes decreased track speed in racehorses: The study does not discuss non-iron-enriched feed or make any claims about its effect on racehorse speed. The study only examined the effects of an iron-rich diet, not the comparison with other types of feed.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Exceptional students are neither humble nor lazy: Based on the first statement, exceptional students are not lazy, and according to the second statement, they must be humble (since they are not arrogant). So, this statement contradicts both premises.
B. Every exceptional student is humble and not lazy: From the first statement, we know that exceptional students are not lazy, and from the second statement, we know that they are humble (since they are not arrogant). Therefore, every exceptional student is humble and not lazy.
C. If someone is an exceptional student, that student is lazy but humble: The statement about exceptional students being "lazy" contradicts the first premise, which specifically says that exceptional students are not lazy.
D. No humble students are lazy: While this might be true in some cases, it is not a conclusion that directly follows from the premises provided. The premises do not state anything about humble students in general being lazy or not.
Correct Answer is A
Explanation
A. The spokesperson dismisses the speed limit based on the argument that millions of people drive faster and don't experience car breakdowns. However, they ignore the other key argument that the speed limit saves lives, which is a significant factor in the debate about speed limits. The reasoning is incomplete because it fails to address the full scope of the original claim regarding safety.
B. This option is not relevant to the reasoning presented in the statement. The issue is not about the importance of the car manufacturer's beliefs but about the limited reasoning used to dismiss the speed limit.
C. The speaker's argument does not demonstrate a clear relationship between speed and car breakdown; it only suggests that some people drive faster without apparent car breakdowns, which doesn't prove a direct cause-and-effect relationship.
D. The speaker's reasoning does not conclusively show that auto safety cannot be improved; it merely challenges one aspect of the argument (car breakdowns). The reasoning is incomplete and ignores the life-saving aspect of the speed limit.
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