An advertisement for Claritin, a drug for seasonal nasal allergies, made this claim: "Clear relief without drowsiness. In studies, the incidence of drowsiness was similar to placebo" (Time, February 6, 1995, p. 43). The advertisement also reported that 8% of the 1,926 Claritin takers and 6% of the 2,545 placebo takers reported drowsiness as a side effect.Does there appear to be an association between whether one takes Claritin or a placebo and the development of drowsiness in this sample?

Yes, since 8% differs from 6%.

Yes, since 1,926 differs from 2,545.

No, since the sample size was not large enough.

No, since the claim stated the incidence of drowsiness when taking Claritin was similar to that when taking a placebo.