Social networking is becoming more and more popular around the world. Pew Research Center used a survey of adults in several countries to determine the percentage of adults who use social networking sites (USA Today, February 8, 2012). Assume that the results for surveys in Great Britain, Israel, Russia, and United States are as follows:

	Great Britain	Israel	Russia	United States
Yes	344	265	301	500
No	456	235	399	500

Conduct a hypothesis test to determine whether the true proportion of adults using social networking sites is equal for all four countries. What is the exact or approximate p-value? Using = 0.05 level of significance, what is your conclusion?