In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of them use the Internet regularly. Of the Internet users, 1054 use a social networking site.1 Find a 90% 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. Correct. (a) Proportion of US adults who use the Internet regularly.Round your answers to three decimal places.The 90% confidence interval is to . SHOW HINTSHOW SOLUTIONLINK TO TEXT Incorrect. (b) Proportion of US adult Internet users who use a social networking site.Round your answers to three decimal places.The 90% confidence interval is to . SHOW HINTLINK TO TEXT Incorrect. (c) Proportion of all US adults who use a social networking site.Round your answers to three decimal places.The 90% confidence interval is to .Use the confidence interval to estimate whether it is plausible to estimate that 50% of all US adults now use a social networking site. YesNo Click if you would like to Show Work for this question:Open Show Work

It is given that the number of US adults is 2255, among them 1787 are uses the internet regularly.…

Answered: In a survey of 2255 randomly selected…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 6E: List the sample space of each experiment. Tossing three coins

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In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of them use the Internet regularly. Of the Internet users, 1054 use a social networking site.¹ Find a 90% 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.


	Correct.

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

Round your answers to three decimal places.

The 90% confidence interval is to .

SHOW HINT

SHOW SOLUTION

LINK TO TEXT


	Incorrect.

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

Round your answers to three decimal places.

The 90% confidence interval is to .

SHOW HINT

LINK TO TEXT


	Incorrect.

(c) Proportion of all US adults who use a social networking site.

Round your answers to three decimal places.

The 90% confidence interval is to .

Use the confidence interval to estimate whether it is plausible to estimate that 50% of all US adults now use a social networking site.

YesNo

Click if you would like to Show Work for this question:

Open Show Work

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