根据一个具体的样本，计算总体均值的置信水平为90%的置信区间，则该区间( )。[浙江工商大学2011研]

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30462' and id < 2461263 and id<>'2461263' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30462' and id > 2461263 and id<>'2461263' order by id asc limit 5