Results of a clinical trial show that 55 patients who received laser surgery for nearsightedness had severe nausea and vomiting after the procedure. The same local anesthetic was administered to all 55 patients. What information do you need to determine whether the anesthetic led to the nausea and vomiting these laser surgery patients had after their procedure?

Question

Quizplus · Accepted Answer

The denominator is needed to understand the total number of patients who received the anesthetic, which allows for determining the proportion of those who experienced nausea and vomiting, thereby assessing the likelihood that the anesthetic caused these symptoms.

Results of a Clinical Trial Show That 55 Patients Who