hard · GMAT Verbal Reasoning
A pharmaceutical company claims that its new drug, Claritex, is more effective at treating chronic insomnia than the current leading medication, Somnium. In a clinical trial, 75% of patients taking Claritex reported sleeping more than seven hours per night, whereas only 60% of patients taking Somnium reported the same.
Which of the following would be most useful to know in order to evaluate the company's claim?
- Whether Claritex has received regulatory approval for use in countries other than the one where the trial was conducted.
- How many of the patients in the trial had previously used other insomnia medications without success.
- The total number of patients who participated in the clinical trial for Claritex.
- The retail price the company intends to charge for a thirty-day supply of Claritex compared to the price of Somnium.
- Whether the Claritex group had less severe insomnia on average before the trial than the Somnium group.
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