= Test: Fina... Question 15 of 21 This test: 200 point(s) possible This question: 14 point(s) possible Submit test A certain drug is used to treat asthma. In a clinical trial of the drug, 27 of 286 treated subjects experienced headaches (based on data 1-PropZTest from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 12% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 prop