试题与答案

抽样研究中，如果s不变，增大样本量，那么以下描述正确的是（） A.标准误不变 B.标

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题型：单项选择题 A1型题

题目：

抽样研究中，如果s不变，增大样本量，那么以下描述正确的是（）

A.标准误不变

B.标准误减小

C.标准误增大

D.标准误先减小后增大

E.标准误先增大后减小

答案：

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