一、调查方法说明北京美兰德信息公司于2002年成功地进行了第四次全国卫星电视频道观众收视状况调查。此项调查的总体是全国30个省、自治区、直辖市(暂未含西藏和港澳台地区)的有电视家庭,共3.45亿户,12.1 7亿人。调查在全国采取分层不等概率多阶段抽样方法,抽取市县 First, the survey methods Beijing Meilande Information Company in 2002 successfully conducted the fourth national satellite TV channel audience ratings survey. The survey is conducted on the basis of a total of 345 million households and 1,217 million people with television households in 30 provinces, autonomous regions and municipalities directly under the Central Government (excluding Tibet and Hong Kong, Maucao regions). The survey adopts stratified unequal probability multi-stage sampling method across the country to draw cities and counties