Cyberbullying rates. Teens were surveyed about cyberbullying, and 54% to 64% reported experienc- ing cyberbullying (95% confidence interval).23 Answer the following questions based on this interval.
(a) A newspaper claims that a majority of teens have experienced cyberbullying. Is this claim supported by the confidence interval? Explain your reasoning.
(b) A researcher conjectured that 70% of teens have experienced cyberbullying. Is this claim supported by the confidence interval? Explain your reasoning.
(c) Without actually calculating the interval, determine if the claim of the researcher from part (b) would be supported based on a 90% confidence interval?