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You may need to use 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 77% of adults aged 18 to 24 use Snapchat. Another finding was that 48% of those aged 18 to 24 use Twitter. Assume the sample size associated with both findings is 600. (a) Develop a 95% condence interval for the proportion of adults aged 18 to 24 who use Snapchat. (Round your answers to four decimal places.) x ro_x (b) Develop a 99% condence interval for the proportion of adults aged 18 to 24 who use Twitter. (Round your answers to four decimal places.) /m/ (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) v / for two reasons. The sample proportion of adults aged 18 to 24 who use Twitter is closerto 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 v / than the standard error of the latter. In addition, 2.1/2 for a 99% condence interval is greater than v \\/ 241/2 for a 95% confidence interval