PT111.S1.Q15 > Question

SECTION 1 · lr

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SECTION 2 · rc

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PASSAGE 4

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SECTION 3 · lr

SECTION 4 · lr

The statistician claims there’s reason to be skeptical about the magazine’s claim that North Americans are more concerned with finances than politics. Why? Because a question on the survey was biased and because subscribers to the magazine might poorly represent North Americans in general.

The statistician assumes conclusions based on a survey with a self-selecting sample and a biased question should be received skeptically. He assumes the survey question he quotes is biased in a way that could affect the conclusion based on the survey’s results.

This is another reason to view the survey’s results with skepticism. It suggests the magazine has been accused of being careless or insincere, which doesn’t prove the magazine’s conclusion wrong, but does give a reason to be skeptical of it.

This is another reason to view the magazine’s conclusion with skepticism. It suggests magazine surveys in general are unreliable, which doesn’t prove this magazine’s conclusion is false, but gives a reason to be skeptical about it.

This introduces new evidence that conflicts with the magazine’s conclusion, giving more reason to doubt that conclusion.

This makes concrete the statistician’s assumption that a survey with an unrepresentative sample and a biased question should be viewed skeptically.

This is irrelevant. Neither the magazine nor the statistician assumes politics and personal finance are the only two issues North Americans care about. Concern about a third issue gives no reason to doubt the magazine’s conclusion, which compares interest in the two issues only.

PrepTest 111 - Section 1 - Question 15

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