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Help please A certain drug is used to treat asthma. In a clinical trial of the drug, 25 of 287 treated subjects experienced headaches (based

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A certain drug is used to treat asthma. In a clinical trial of the drug, 25 of 287 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator 1-PropZTest display shows results from a test of the claim that less than 10% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and prop

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