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MMLU / Both over-the-counter niacin and the prescription drug Lipitor are known to…

Problem

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question

Both over-the-counter niacin and the prescription drug Lipitor are known to lower blood cholesterol levels. In one double-blind study Lipitor outperformed niacin. The 95% confidence interval estimate of the difference in mean cholesterol level lowering was (18, 41). Which of the following is a reasonable conclusion?

choices

  1. Niacin lowers cholesterol an average of 18 points, while Lipitor lowers cholesterol an average of 41 points.
  2. There is a 0.95 probability that Lipitor will outperform niacin in lowering the cholesterol level of any given individual.
  3. There is a 0.95 probability that Lipitor will outperform niacin by at least 23 points in lowering the cholesterol level of any given individual.
  4. None of the above.

subject

high_school_statistics

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Source and history

task_id
d550dc24-fed4-5a33-97d9-576cf60ae613
task_key
all--test--d550dc24-fed4-5a33-97d9-576cf60ae613
task_revision_id
1
config / split
all / test

Official source

initial import