Question

A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims that more than 92% of patients taking the drug are healed within 8 weeks, in clinical trials, 206 of 221 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the a=0 1 level of significance Click here to view the standard normal distribution table (page 1). Click here lo view the standard normal distribution table (page 2). Because nipo (1-P) - 0 10, the sample size is 5% of the population size, and the sample the requirements for testing the hypothesis satisfied (Round to one decimal place as needed.)

please help

Answer 1

Given Po = 92010 = 0.92 Xs = 206 na 221 ri= a=0.1 Now mpoll-POJ = 221X0.92(1-0.92) - 16. 2656 16:3 Beacouse npo (1-P)=16.3 >10, the sample size is 5 less than population size, and the sample be resonable assumed to be random cam the orequirement for testing the hypothesis are satisfied.