Social life A question posted on the gamefaqs.com web-site on August 1, 2011, asked visitors to the site, “Do you have an active social life outside the Internet?” 22% ofthe 55,581 respondents said “No” or “Not really, most ofmy personal contact is online.”a) Can this survey be used to estimate the proportion ofU.S. adults who would say they have an active sociallife outside the Internet? Why or why not?b) Can this survey be used to estimate the proportion ofvisitors to their site who would say they have an activesocial life outside the Internet? Why or why not?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.