In a recent international poll, nine of 44 respondents rated the likelihood of a terrorist attack in their community as "likely" or "very likely." use the "plus four" method to create a 96% confidence interval for the proportion of american adults who believe that a terrorist attack in their community is likely or very likely. (round your answers to two decimal places.)explain what this confidence interval means in the context of the problem. a)we are 96% confident that the true proportion of american adults that believe that a terrorist attack in their community is likely or very likely lies within this interval. b)we are 96% confident that the proportion of american adults in the sample of 44 adults that believe that a terrorist attack in their community is likely or very likely lies within this interval. c)there is a 96% chance that an american adult believes that a terrorist attack in their community is likely or very likely. d)we are 96% confident that an american adult believes that a terrorist attack in their community is likely or very likely.