StrengthenDiff: Medium

Logic Breakdown

Passage Summary: A statistician argues that a magazine's poll is junk because the question was rigged and they only asked their own readers, who probably care about money more than the average person.

Conclusion: We should be skeptical of the magazine's claim that North Americans prioritize personal finances over politics.

Reasoning: The survey question was loaded and biased, and the group surveyed consists of a self-selecting sample of magazine subscribers who do not represent the general population.

Analysis: This is a 'Strengthen EXCEPT' question, so our task is to identify which four choices support the statistician's skepticism and which one does not. The statistician attacks the survey on two fronts: the wording of the question and the nature of the sample. To strengthen the argument, a choice could provide more evidence that the subscribers are unrepresentative or that the question wording skewed the results. The 'odd man out' will likely be a choice that either suggests the survey was actually well-designed or is simply irrelevant to the statistician's critique.

Passage Stimulus

Passage Redacted

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15.

Each of the following, if true, would strengthen the statistician's argument EXCEPT:

Correct Answer
E
Pointing out that other surveys show concern with social issues as well does not speak to whether people are more concerned about finances than politics or whether the original survey was biased or unrepresentative. It’s off-point and thus does not strengthen the statistician’s skepticism.
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