A research center has conducted extensive research on social media usage. One finding was that 73% of adults aged 18 to 24 use Snapchat. Another finding was that 44% 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.) to (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.) to (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-Select--than the sample proportion of adults aged 18 to 24 who use Snapchat. Therefore, the standard error of the former is ---Select-- than the standard error of the latter. In addition, 2/2 for a 99% confidence interval is --Select--a/2 for a 95% confidence interval.

A research center has conducted extensive research on social media usage. One finding was that 73% of adults aged 18 to 24 use Snapchat. Another finding was that 44% 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.) to (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.) to (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-Select--than the sample proportion of adults aged 18 to 24 who use Snapchat. Therefore, the standard error of the former is ---Select-- than the standard error of the latter. In addition, 2/2 for a 99% confidence interval is --Select--a/2 for a 95% confidence interval.

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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