12. Use the data in the table below to conduct a two-sample proportion test to determine if there is sufficient evidence to think that rates of infection for those inoculated with the cholera vaccine were lower than the rate among those who were not inoculated. (10 points) not infected infected inoculated 3 276 279 not inoculated 66 473 539 69 749 818 Cholera Inoculation Study, 1894-96