. The drug Clarinex was developed as an alternative to currently available options for treating 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. a) Construct a 95% CI for the population difference in proportion of fatigue between subjects using Clarinex and those receiving a placebo. b) Does fatigue appear to be a major concern for those who use Clarinex