A survey shows 80 out of 100 people prefer product A over B. Which of the following weakens this result?
Correct answer: A. The survey was conducted only among product A users
- A. The survey was conducted only among product A users
- B. Product A is cheaper
- C. Product B is new
- D. The results were published online
Explanation
The correct answer is Option A: 'The survey was conducted only among product A users.' This option directly weakens the survey results because it indicates a biased sample that does not fairly represent the overall population's preferences. Option B suggests a reason why people might prefer product A but does not weaken the survey results. Option C points to the newness of product B, which might affect its current popularity, but does not directly weaken the survey's result. Option D, regarding publication medium, does not impact the survey's reliability.
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About Critical Thinking
Critical thinking examines how conclusions follow from evidence, including claims, assumptions, arguments, inferences and relevant facts. Questions ask you to identify hidden assumptions, distinguish strong from weak evidence, assess cause and effect, recognise common reasoning errors, and decide which statement strengthens or weakens an argument.
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