A February 2016 Gallup Poll of 1,021 US adults found that 73% believe that cyberterrorism is a critical threat to US vital interests in the next 10 years. The reported margin of error is 24 percentage points. The reported confidence level is 95%. Which of the statements is a correct and complete confidence statement in this scenario? 1. We are 95% confident that true proportion of US adults who believe that cyberterrorism is a critical threat to US vita interests in the next 10 years is between 69% and 77%. ·
2. We are 95% confident that proportion of US adults surveyed who believe that cyberterrorism is a critical threat to US ital interests in the next 10 years is between 69% and 77%.
3. We are 95% confident that the true proportion of US adults who believe that cyberterrorism is a critical threat to US vital interests in the next 10 years is 73%.
4. We are sure that the true proportion of US adults who believe that cyberterrorism is a critical threat to US vital interests in the next 10