The internet service provider AOL periodically conducts poll

The internet service provider AOL periodically conducts polls by posting a survey question on its Web site, and Internet users can respond if they choose to do so. Assume that a survey question asks whether the respondent has a high-definition television in the household and the results are used to construct this 95% confidence interval: .232 < p< .248. Can this confidence interval be used to form valid conclusions about the general population? why or why not?

Solution

NO, because the fact that they can access the internet (and visits the AOL website) can be related to whether a person has a high-definition television or not.