Can someone please walk me through the steps? Thank you!

Chapter 6, Section 1*CI, Exercise 024 Social Networking Sites In a survey of 2255 randomly selected US adults (age 13 or older), 1787 of them use the Internet regularly. Of the Internet users, 1054 use a social networking site.l Find a 99% confidence interval for each of the fDiiowing proportions. lHampton, 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. The 99% condence interval is l to l SHOW HINT LINK TO TEXT (b) Proportion of US adult Internet users who use a social networking site. Round your answers to three decimal places. The 99% condence interval is l to l (c) Proportion of all US adults who use a social networking site. Round your answers to three decimal places. The 99% condence interval is l to l l. Use the confidence interval to estimate whether it is plausible to estimate that 50% of all US adults now use a social networking site