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. The results for surveys in Great Britain, Israel, Russia, and United States are as follows:

(a) State the null and the alternative hypotheses to test whether the proportion of adults using social networking sites is equal for all four countries.

(b) Compute the test statistic.

Use Social Networking

Country

Great Britain

Israel

Russia

US

Yes

344

265

301

500

No

456

235

399

500

(c) Using thep-value approach, what is your conclusion? Let= .05.