Common Sense Media surveyed 1,000 teens and 1,000 parents of teens to learn about how teens are using
social networking sites such as Facebook and MySpace.† The two samples were independently selected and
were chosen in a way that makes it reasonable to regard them as representative of American teens and
parents of American teens. When asked if they check their online social networking sites more than
10 times a day, 220 of the teens surveyed said yes. When parents of teens were asked if their teen checks
his or her site more than 10 times a day, 40 said yes. The researchers used these data to conclude that
there was evidence that the proportion of all parents who think their teen checks a social networking site
more than 10 times a day is less than the proportion of all teens who report that they check the sites more
than 10 times a day.

Answer the four key questions.

Q, Question Type: Estimation or hypothesis testing?

S, Study Type: Sample data or experiment data?

T, Type of Data: One variable or two? Categorical or numerical?

N, Number of Samples or Treatments: How many samples or treatments?