A magazine's survey of its subscribers shows that 90 percent of those who replied approve of its new design. The editor concludes that the redesign has been a success with its readers.
Which one of the following is an assumption on which the editor's conclusion depends?
Answer and explanation
Correct answer: C. The subscribers who replied are representative of the magazine's readers
- Step 1: The conclusion extends the replies to all readers. Step 2. That is only sound if the replies are representative. Answer: the repliers are representative. Why not the others: these do not link the survey to all readers.
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