The article “Broad Agreement on Most Ideas to Curb School Shootings” from the Gallup.com website reported on a survey carried out from March 5–11, 2018. There was overwhelming support for more training of school and security personnel, and for background checks for all gun sales. However, opinion was more evenly split on the issue of arming teachers; 42% of the 1515 adults in the sample favored providing teachers with weapons. Using a 95% confidence level, calculate an upper confidence bound for the percentage of all adults in the USA who favor arming teachers. Based on your interval, can you be confident that a majority of the population does not favor such a policy?