统计学区间估计、假设检验求教

2025-03-28 02:08:26
推荐回答(2个)
回答1:

不知道你是否问区间估计与假设检验的关系?
区间估计与假设检验的关系
(一)主要区别:
1、参数估计是以样本资料估计总体参数的真值,假设检验是以样本资料检验对总体参数的先验假设是否成立;
2、区间估计求得的是求以样本估计值为中心的双侧置信区间,假设检验既有双侧检验,也有单侧检验;
3、区间估计 立足于大概率,假设检验立足于小概率。
(二)主要联系:
1、都是根据样本信息推断总体参数;
2、都以抽样分布为理论依据,建立在概率论基础之上的推断;
3、二者可相互转换,形成对偶性。

回答2:

统计推断是根据样本信息对总体进行估计、假设检验、预测或其他推断的统计方法

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