1. A trial evaluated the fever-inducing effects of three substances. Study subjects were adults seen in an emergency room with diagnoses of the flu and body temperatures between 100.0 and 100.9F. The three treatments (aspirin, ibuprofen and acetaminophen) were assigned randomly to study subjects. Body temperatures were reevaluated 2 hours after administration of treatments. The below table lists the data.

Data Table: Decreases in body temperature (degrees Fahrenheit) for each patient

\fMean Group 1 (aspirin) 0.95 1.48 1.33 1.28 1.26 Group 2 0.39 0.44 1.31 2.48 1.39 1.20 (ibuprofen) Group 3 0.19 1.02 0.07 0.01 0.62 -0.39 0.25 (acetaminophen)