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MMLU / Dr. Ramchandran found that his patients who brushed their teeth after lunch had…

Problem

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question

Dr. Ramchandran found that his patients who brushed their teeth after lunch had 1/20 the number of cavities in their teeth as those who didn't. After interviewing the dentist, a local newswriter reports that brushing teeth after lunch prevents cavities. Based on the dentist's research, which of the following statements is true?

choices

  1. If at least 100 patients were studied, the writer's statement is justified.
  2. If a minimum of 500 patients were studied, the writer's statement is justified.
  3. At least 100 of the patients needed to have brushed their teeth after lunch for the writer's statement to be justified.
  4. No matter how many participants, the writer's statement is not justified.

subject

high_school_psychology

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Source and history

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