Calculate interactive Mediation Tests Association between IV & mediator Coefficient ( A ) Association between mediator & DV ( B ) Standard error of A ( Sa ) Standard error of B ( Sb ) Test Name Test statistic P value Sobel Test 0 0 Aroian Test 0 0 ...
In the case of these t-tests for differences in means, the p-value is the probability of calculating a t-statistic that is as large or larger than what was actually calculated from the observed data if, in fact, the population means were identical. ...
The test statistic is {eq}\chi^{2}=0.066+1.066+1.066+0.066=2.264 {/eq}. For a Chi-Square distribution with 4-1=3 degrees of freedom, we compute the p-value using an online calculator (such as https://www.statology.org/chi-square-p-value-calculator/)...
We can see that the critical value for the degree of freedom (11) in theT-distribution tableat a 95% confidence interval is201 Note:We used the same T-distribution table mentioned above to find the critical value for the next two examples. Step 5: Interpret the t value Finally, we need...
p-value:a61.37Sobeltest:2.0880.036b.065Aroiantest:2.0450.040sa14.61Goodmantest:2.1340.032sb.027ResetallCalculateIfyouscrolldowntothesecondcalculator,Input:Teststatistic:p-value:taSobeltest:tbAroiantest:Goodmantest:ResetallCalculateyoucanenterthevaluesforta(thetvaluecalculatedwhentestingwhethertherelationship...
Oncet-test statistic valueis determined, you have to read int-test tablethecritical value of Student’s t distributioncorresponding to thesignificance level alphaof your choice (5%). Thedegrees of freedom(df) used in this test are :
Depending on the test you run, you may see other statistics that were used to calculate the P value, including the mean difference, t statistic, degrees of freedom, and standard error. The confidence interval and a review of your dataset is given as well on the results page. ...
The t-test calculator, work with steps, formula and practice problems would be very useful for grade school students (K-12 education) to learn what is appropriate test statistic for t-Test, how to find it. With this statistics and probability tool, we can effortlessly make student's t-dist...
From the calculator, we see that the test statistic (T) is 8.91505. Assuming equal variances in groups and given a significance level of 0.05, the probability of observing a test statistic (T) bigger than 8.91505 is given by the P-value. Since the P-value (0.06326) is bigger than the ...
P<0.001。按照a = 0.05水准,拒绝H0,接受H1,故可认为夏冬两个 季节居民体内核黄素含量有差别。 三、多组独立样本比较的秩和检验 3.1多组独立样本比较的秩和检验(KruskalWallis H检验) 推断定量变量或有序分类变量的多个总体分布有无差别 例4 某医院用3种不同方法治疗15例胰腺癌患者,每种方法 各治疗5例。