An experimenter has prepared a drug-dose level that he claims will induce sleep for at least 80% of people suffering from insomnia. After examining the dosage we feel that his claims regarding the effectiveness of his dosage are inated. In an attempt to disprove his claim, we administer his prescribed dosage to 40 insomniacs and observe that 29 of them have had sleep induced by the drug dose. Is there enough evidence to refute his claim at the 5% level of signicance? State the null and alternative hypotheses. O H0: ,0 = 0.80 versus H3: ,0 > 0.80 Q H0: ,0 = 0.80 versus H3: ,0 0.80 a! Find the test statistic and rejection region. (Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused region.) test statistic z = |:| rejection region 2 b \\:i z