Emergence management offices have to send out early warnings…

Emergence management offices have to send out early warnings before a disaster. During the 2017 Northern California wildfires, many residents in peril did not receive the warnings because their mobile phones lost service as transmission towers and lines were destroyed amid the fire. The fire highlighted the inadequacies of the emergency warning system. Two months after the fires, the officials pushed for new safety protocols to improve the reliability and coverage of their early warning system. One of the attempts was to broaden the warnings to include some 53,000 landlines gleaned from AT&T.   Which of the following explains the policy failure in the 2017 wildfire?

Data from the Phase 3 randomized controlled trial demonstrat…

Data from the Phase 3 randomized controlled trial demonstrates that people who received the COVID-19 booster shot show a vaccine efficacy of 95% when compared to those who did not receive a booster.   This statement offers an example for which of the following concepts?