1.4 Paired Sample T-test的应用条件 2. 计算步骤 2.1 数据收集与准备 2.2 计算配对样本均值差异 2.3 计算T值 2.4 判断显著性并给出结论 3. 案例分析 3.1 背景介绍:某医院开展了一项药物治疗研究,收集了患者治疗前后的血压数据 3.2 数据处理:对治疗前后的血压数据进行配对样本T-test分析 3.3 结果解释:得出治疗前...
Paired Samples T-Test Assumptions Technically, a paired samples t-test is equivalent to a one sample t-test on difference scores. It therefore requires the same 2 assumptions. These are independent observations; normality: the difference scores must be normally distributed in the population. Normalit...
1.配对样本T检验(Paired samples t test)的概念:检验 两组相关的样本是否来自具有相同均值的总体。例:(1)某班学生开学前的数学成绩和期末的数学成绩是否有显著差异; (2)某个运动员训练前的成绩和训练后的…
The Paired-Samples T Test procedure compares the means of two variables for a single group. The procedure computes the differences between values of the two variables for each case and tests whether the average differs from 0.Example. In a study on high blood pressure, all patients are ...
The input data for the paired-sample t-test can have missing data, indicated by empty cells or cells with non-numeric data. Such cells will be ignored in the analysis. Example 2: Repeat Example 1 using the data in range B24:C39 of Figure 6. ...
independent samples-T test独立样本t检验,适合样本中两个独立的部分的均数差异检验,比如说同一个班级数学成绩的男女性别差异检验; paired-sample T test配对样本t检验,适合配对样本(至于什么叫配对样本解释起来比较麻烦)的均数差异检验. 具体的情况可以参考下面介绍t检验的几篇文章, 至于独立样本与配对样本的区分方法:...
配对样本t检验简称配(成)对t检验(paired/matched t-test),也称关联样本t检验(related-sample t-test),适用于配对设计或自身对照设计的计量资料的比较。配对设计是将受试对象按照某些重要特征(如性别、年龄等可疑混杂因素)配成对子,再将每对中的两...
Paired t-test data: before and after t = -20.883, df = 9, p-value = 6.2e-09 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -215.5581 -173.4219 sample estimates: mean of the differences -194.49 ...
Paired-Sample T Test 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 配对样本t检验 翻译结果2复制译文编辑译文朗读译文返回顶部...
两关联样本t 检验(paired sample t test)