In the clinical trials of the allergy medicine Clarinex, 50 out of 1655 individuals reported having dry mouth. In the placebo control group, 31 out of 1652 reported having a dry mouth as a side effect. Test the equality of proportions VS the alternative hypothesis that Clarinex causes dry mouth - at .05 significance level.
a. Hypothesis being tested?
b. Critical Value:
c. What is the appropriate T or Z:
d. Statistical conclusion:
e. Practical conclusion: