Lying about age again The 95% confidence interval for the number of teens in Exercise 1 who reported that they had misrepresented their age online is from 45.6% to 52.5%.  a) Interpret the interval in...

Lying about age again The 95% confidence interval for the number of teens in Exercise 1 who reported that they had misrepresented their age online is from 45.6% to 52.5%.

 a) Interpret the interval in this context.

 b) Explain the meaning of “95% confident” in this context.

Exercise 1

Lying about age Pew Research, in November 2011, polled a random sample of 799 U.S. teens about Internet use. 49% of those teens reported that they had misrepresented their age online to gain access to websites and online services.

 a) Explain the meaning of pn = 0.49 in the context of this situation.

 b) Calculate the standard error of pn.

 c) Explain what this standard error means in the context of this situation.