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A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 256 treated subjects experienced headaches (based on data

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A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 256 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 9% of treated subjects experienced headaches. Use the normal distribution as an 1-PropzTest approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. prop

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