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…
1.1 Paired Sample T-test的概念 1.2 Paired Sample T-test与Independent Sample T-test的区别 1.3 Paired Sample T-test的假设检验 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...
For each variable: mean, sample size, standard deviation, and standard error of the mean. For each pair of variables: correlation, average difference in means, t test, and confidence interval for mean difference (you can specify the confidence level). Standard deviation and standard error of th...
Inpaired samplehypothesis testing, a sample from the population is chosen and two measurements for each element in the sample are taken. Each set of measurements is considered a sample. Unlike in two-sample hypothesis testing (seeTwo-sample t-Test), the two samples are not independent of one ...
两关联样本t 检验(paired sample t test)
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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...
C. Z-test. D. single sample t-test. How are the t-test for correlated groups and the t-test for single samples alike and different? Give some examples. If homogeneity of variance is violated for a correlated-groups t-test, what nonparametric test should be co...
内容提示: 17CHAPTER 4PAIRED SAMPLES T-TESTBRIEF DESCRIPTIONA paired-samples t-test compares the mean of two matched groups of people or cases, or compares the mean of a single group, examined at two different points in time. If the same group is tested again, on the same measure, the ...
The paired sample t-test, sometimes called the dependent sample t-test, is a statistical procedure. Specifically, it determines whether the mean difference between two sets of observations is zero. In a paired sample t-test, one should measure each subject or entity twice, resulting in pairs ...