给定样本之后，降低置信水平会使得置信区间的宽度（ ）。[中山大学2012研]

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30462' and id < 2461268 and id<>'2461268' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30462' and id > 2461268 and id<>'2461268' order by id asc limit 5