Math Problem Statement
如果一组数据的样本量小于25或者30,总体标准差未知,要去对总体均值进行假设检验,这时应该使用单样本t检验,而不是单样本Z检验
Solution
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Math Problem Analysis
Mathematical Concepts
Hypothesis Testing
T-Distribution
Standard Deviation
Formulas
t statistic formula: t = (x̄ - μ₀) / (s / √n)
Theorems
Central Limit Theorem
Suitable Grade Level
Advanced College
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