To find the probability associated with a t statistic, use a t-distribution table (found in the appendix of most introductory statistics texts), a graphing calculator, an online t-distribution calculator, like Stat Trek's T Distribution Calculator....
T-Distribution Table (One Tail). For more info on the parts of the t table, including how to calculate them, see: degrees of freedom and alpha level.
Statistics Examples μ≥2μ≥2,n=17n=17,α=0.1α=0.1 Find the t-value using a t-distribution table. To prove themeanis greater than22, use the one tailed test. −1.33675715-1.33675715 Enter YOUR Problem
The tables assume people will use a z-distribution for larger sample sizes. Find the cell in the table at the intersection of your α level and degrees of freedom. This is the t-distribution value. Compare your statistic to the t-distribution value and make the appropriate conclusion....
The Tails of a Distribution 分布的尾部 假设检验的尾部:位于临界值以外的区域(拒绝域),也是一个分布的尾部。 从尾部来看,有三种不同的检验: 1、A left-tailed test 左侧检验:拒绝域位于分布的左侧 2、A right-tailed test 右侧检验:拒绝域位于分布的右侧 ...
The t-distribution calculator computes probability, based on t statistics. Fast, easy, accurate. An online statistical table. Sample problems and solutions.
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在概率论和统计学中,学生t-分布(t-distribution),可简称为t分布,用于根据小样本来估计 呈正态分布且方差未知的总体的均值。如果总体方差已知(例如在样本数量足够多时),则应该用正态分布来估计总体均值。 In probability and statistics, Student's t-distribution (or simply the t-distribution) is any member ...
在概率论和统计学中,学生t-分布(t-distribution),可简称为t分布,用于根据小样本来估计 呈正态分布且方差未知的总体的均值。如果总体方差已知(例如在样本数量足够多时),则应该用正态分布来估计总体均值。 In probability and statistics, Student's t-distribution (or simply the t-distribution) is any member ...
In general, this distribution is used when you have a smallsample size(under 30) or you don’t know the population standard deviation. For practical purposes (i.e. in the real world), this is nearly always the case. So, unlike in yourelementary statisticsclass, you’ll likely be using ...