An experiment was conducted to test the effect ofa new drug on a viral infection. After the infection was induced in 100 mice, the mice were randomly split into two groups of 50. The rst group, the control group, received no treatment for the infection, and the second group received the drug. After a 30-day period, the proportions of survivors, {31 and 332, in the two groups were found to be 0.4 and 0.66, respectively. (a) Is there sufcient evidence to indicate that the dmg is effective in treating the viral infection? Use a: = 0.05. State the null and alternative hypotheses. Q Hi]: {p1 p2} = Dversus Ha: (p1 p2) 0 O HO: {p1 p2} = Dversus Ha: (p1 p2) > 0 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.) rejection region 2 3 :I z