21. Adverse Effects of Clarinex The drug Clarinex is used to treat symptoms from allergies.

In a clinical trial of this drug, 2.1% of the 1655 treated subjects experienced fatigue.

Among the 1652 subjects given placebos, 1.2% experienced fatigue (based on data from Schering Corporation). Use a 0.05 significance level to test the claim that the incidence of fatigue is greater among those who use Clarinex. Does fatigue appear to be a major concern for those who use Clarinex?