O Za = 2.33 D Question 3 2 pts A new UNICEF-Gallup study reported that 15- to 24-year-olds count on social media and other digital sources to stay informed, but this doesn't mean they trust the information they get frond them. Across the mix of 21 low-, middle- and high-income countries surveyed in 2021 for UNICEF's Changing Childhood Project, young people report most often using social media or online news sites to stay informed about current events. They provided a confidence interval for the percentage of young people who count on social media and other digital sources to stay informed to be between 40.6% and 49.4%. a. What is the best point estimate for the proportion of young people. Oz bar = 0.45 C P = 0.45 OP = 0.5 OH = 0.5 OD = 0.45