7.51. A report (12/04/2002) by the Pew Research Center on What the World Thinks in 2002 reported that

"the American public is strikingly at odds with publics around the world in its views aboutthe U.S.

role in the world and the global impact of American actions." Conclusions were based on polls in several countries. In Pakistan, in 2002 the percentage of interviewed subjects who had a favorable view ofthe U.S. was 10%, and the percentage who thoughtthe spread of American ideas and customs was good was 2% {n = 2032).

(a) Do you have enough information to make an inferential comparison of the proportions? If so, do so. If not, what else would you need to know?

(b) For a separate survey in 2000, the estimated percentage who had a favorable view of the U.S. was 23%. To compare inferentially the percentages in 2000 and 2002, what more would you need to know?