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 % of patients taking the drug are healed within 8 weeks. In clinical trials, of patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the level of significance.

Because np0(1-p0)= __#___(=,=/,<,>) 10, the sample size is (greater than, less than) , 5% of the population size, and the sample (can be reasonably assumed to be random, cannot be reasonably assumed to be random, is given to not be random, is given to be random) the requirements for testing the hypothesis (are ,are not) satisfied.

What are the null and alternative hypotheses? H0: _________versus H1: _________

Determine the test statistic, z0.

z0=______

Determine the critical value(s). (Round to two decimal places as needed.) A. Za= _______ B.+/- z a/2= +/- ______

Choose the correct conclusion below. A. do not reject the null hypothesis. There is sufficient evidence to conclude more than % of patients taking the drug are healed within 8 weeks. B. do not reject the null hypothesis. There is insufficient evidence to conclude that more than % of patients taking the drug are healed within 8 weeks. C. reject the null hypothesis. There is sufficient evidence to conclude that more than % of patients taking the drug are healed within 8 weeks. D. reject the null hypothesis. There is insufficient evidence to conclude that more than % of patients taking the drug are healed within 8 weeks.