Answer Happy

In 2007, the prevalence of school-based bullying among students was 32%. A campaign to help raise awareness to bullying wants to know if that prevalence has changed since 2007. A random sample of 1,054 nine- through- eleven-year old children found that 653 have ever experienced bullying. Use the confidence interval estimate for the proportion of 9 - 11 -year-old children who say they have ever experienced school- based bullying. Interpret the confidence interval in context of the problem. We are confident that 99% of the 9-11-year olds are contained in the interval from the lower bound to the upper bound, We are confident that there is a 99% chance the proportion of 9-11-year olds who have ever experienced bullying is between the lower bound and the upper bound. We are 99% confident that the proportion of 9-11-year olds who have ever experienced bullying is contained in the interval from the lower bound to the upper bound, We are 99% confident that the proportion of the 9-11-year olds from the sample who have ever experienced bullying is contained in the interval from the lower hound in the inner