se the appropriate appendix table or technology to answer this question. A research center has conducted extensive research on social media usage. One finding was that 71% of adults aged 18 to 24 use Snapchat. Another finding was that 42% of those aged 18 to 24 use Twitter. Assume the sample size associated with both findings is 600. (a) Develop a 95% confidence interval for the proportion of adults aged 18 to 24 who use Snapchat. (Round your answers to four decimal places.) 1.96 X to 0.0359 X (b) Develop a 99% confidence interval for the proportion of adults aged 18 to 24 who use Twitter. (Round your answers to four decimal places.) 2 576 * to 0.0519 X (c) In which case, part (a) or part (b), is the margin of error larger? Explain why. The margin of error is larger in part (b) . for two reasons. The sample proportion of adults aged 18 to 24 who use Twitter is closer to 0.5 v . than the sample proportion of adults aged 18 to 24 who use Snapchat. Therefore, the standard error of the former is greater than | . than the standard error of the latter. In addition, za/2 for a 99% confidence interval is greater than v ] za/2 for a 95% confidence interval