A survey for use of social networking sites is as follows: GB (yes 344, no 456) Israel (yes 265, no 235) Russia (yes 301, no 399) US (yes 500, no 500)

a.) What are the sample proportions for each of the four countries? Round to two decimals.

b.) Use a .05 level of significance, conduct multiple pairwise comparison tests among the four countries. Round Pi, Pj, and Diff to two decimal places. Round CVij to four decimal places.

[Need to find: Pi, Pj, Diff, n1, n2, CVij]

1) GB vs Israel

2) GB vs Russia

3) GB vs USA

4) Israel vs Russia

5) Israel vs USA

6) Russia vs USA