题目内容
四个样本率比较,P≤α,结论应为
2021-10-11
A.各总体率不等或不全相等
B.各总体率均不相等
C.各样本率均不相等
D.各样本率不等或不全相等
E.各总体率相等
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25429' and id < 2141954 and id<>'2141954' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25429' and id > 2141954 and id<>'2141954' order by id asc limit 5