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符号检验法

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符号检验法 [2023/04/18 08:20] – 创建 zhangruihao符号检验法 [2024/04/19 05:34] (当前版本) aiyuheng
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-====符号检验法====+====符号检验法(Sign test)==== 
 +  *符号检验法对应于相关样本的t检验,根据两个相关样本的每一对数据之差的符号(正负)来进行检验。 
 +  *符号检验法可用于顺序型与类目型的数据。 
 + 
 +* The symbolic test method corresponds to the t test of the relevant samples, and is tested according to the sign (positive or negative) of the difference between each pair of data of the two relevant samples. 
 +* Symbolic testing can be used for sequential and categorical data. 
 +---- 
 + 
 +**检验步骤(checking procedure)** 
 +  *1.提出假设(H0:p(x>y)=0.5/差值d总体的中位数为0); 
 +  *2.根据H0所提供的前提条件确立统计模型 
 +  *3.规定显著性水平α,随之确定否定域; 
 +  *4.计算检验统计量的值; 
 +  *5.做出决策。 
 + 
 +*Hypothesis (H0: p (x>y) =0.5/ The median of the difference d population is 0); 
 +*2. Establish the statistical model according to the preconditions provided by H0 
 +*3. Specify the significance level α, and then determine the negative domain; 
 +*4. Calculate the value of the test statistic; 
 +*5. Make decisions. 
 +---- 
 + 
 +**大样本情况下的符号检验法(Symbolic test method in case of large sample)** 
 +  *大样本(n>25)情况下,可以用与二项分布近似的正态分布进行符号检验。 
 +* For large samples (n>25), the sign test can be performed with a normal distribution approximating the binomial distribution.
符号检验法.1681806058.txt.gz · 最后更改: 2023/04/18 08:20 由 zhangruihao