A standard drug used to relieve pain after a certain type of operation has been successful with 80% of patients. A new drug is tried in the belief that it will be more successful on a sample of 200 patients. Of these patients 170 gain relief. Test, at the 95% level of confidence, whether the new drug is more effective than the old drug. That is test whether more than 80% of patients gain pain relief

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To determine if the new drug is more effective than the old drug at a 95 confidence level we will pe... View the full answer