First, we must arrange the values in ascending or descending order to find the median. Rearranged values: 2, 4, 4, 6, 18, 26. Then, we identify the number in the middle as the median. If there are even numbers of values, we calculate the mean of the values in the middle to fin...
How to Find P-Value? To calculate the p-value, you must first find the test statistic, a value which results from the particular test of significance (or hypothesis test) you use to analyze the data. Common tests of significance include the z-test, the t-test, and the χ2-test. ...
Like most statistical tests, you calculate a test statistic and compare it to a distribution cut-off point. The test statistic used in this test is called the H statistic. The hypotheses for the test are: H0: population medians are equal. H1: population medians are not equal. The Kruskal...
了解关于 Minitab 的更多信息 检验统计量是根据样本数据计算的随机变量,它用在假设检验中。可以使用检验统计量来确定是否要否定原假设。检验统计量将您的数据与原假设下的预期结果进行比较。检验统计量可用于计算 p 值。 检验统计量度量数据样本和原假设之间的一致性。它的观测值会随机地从一个随机样本更改为另一个...
Before we test our data to identify the distribution, here are some measures you need to know: Anderson-Darling statistic (AD):There are different distribution tests. The test I’ll use for our data is the Anderson-Darling test. The Anderson-Darling statistic is the test statistic. It’s ...
How can you determine the degrees of freedom by looking at the sample size on SPSS output? How do I compute an ANOVA summary table with this data? Is there enough evidence to reject the null hypothesis? How do I compute an F-statistic with this data and evaluate F on k-1 a...
Minitab 并不始终为 Anderson-Darling 检验显示 p 值,因为某些情况下它在数学意义上并不存在。 您也可以使用 Anderson-Darling 统计量来比较多种分布的拟合,以确定哪一种是最好的分布。但是,为了判定最好的分布,Anderson-Darling 统计量必须比其他统计量低得多。当统计量彼此接近时,您应该使用其他标准(如...
Durbin-Watson 统计量 (D) 以观测值的顺序(行)为条件。Minitab 假设观测值遵循有意义的顺序(如时间顺序)。Durbin-Watson 统计量确定相邻误差项之间的相关性是否为零。要从检验中得出结论,可以将显示的 Durbin-Watson 统计量值与 Savin 和 White1 提供的下表...
概率单位分析可提供连续应力变量和类别因子。如果提供类别因子,Minitab 会计算相对效能值。该值可以比较不同水平的类别因子中应力变量的效能。当因子变量具有显著的统计意义时,相对效能值才有相关的意义。回归表中的 p 值小于所选的 alpha 水平(通常为 0.05)时,因子...
Minitab assumes that the observations are in a meaningful order, such as time order. The Durbin-Watson statistic determines whether or not the correlation between adjacent error terms is zero. To get a conclusion from the test, you can c...