Question: Chapter 6, Section 1-CI, Exercise 024 Social Networking Sites In a survey of2255randomly selected US adults (age18or older),1787of them use the Internet regularly. Of the

Chapter 6, Section 1-CI, Exercise 024

Social Networking Sites

In a survey of2255randomly selected US adults (age18or older),1787of them use the Internet regularly. Of the Internet users,1054 use a social networking site.¹Find a95% confidence interval for each of the following proportions.

¹Hampton, K., Goulet, L., Rainie, L., and Purcell, K., ''Social Networking Sites and Our Lives," Pew Research Center, June 16, 2011.

(a) Proportion of US adults who use the Internet regularly.

Round your answers to three decimal places.

The95% confidence interval is to .

(b) Proportion of US adult Internet users who use a social networking site.

Round your answers to three decimal places.

The95% confidence interval is to .

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