是的，当你做t-test的时候，p-value跟你的t-statistic 的值是对应的。因为p－value的意义是取到t-statistic的概率。
HypothesisTesting: theteststatisticandtheP-value. TheP-valueofthetest,assumingH 0 istrue,istheprobability thattheteststatisticwouldtakeavalueasextremeormore extremethanthatactuallyobserved. Text: “AfterassessingtheconsequencesofTypeIandTypeII errors,identifythelargestαthatistolerableforthe problem.Thenemploy...
回想一下,我们平常浏览朋友圈是怎么做出判断的: 当我们在Y朋友圈看到A_1,我们可能想,好像他不太符合要求,又看到A_2的时候,好像又能更确定一些了,也就是我们在跟据上述三个事件是否发生来做出判断,那这个东西就叫做test-statistic. DEFINITION 1.4test-statistic就是你做出判断依据的物体。比如说,今天出门带不带伞...
Step 3:Calculate the chi-square test statistic. Step 4:Locate the value of the test statistic in the interior of a chi-square table. Step 5:Compute the p-value. What Are a p-Value and the Chi-Square Test for Independence? p-Value:A p-value is the probabil...
aWe offer great quality 正在翻译,请等待... [translate] ap-value: Probability of obtaining a test statistic more extreme ( ≤ or ) than the observed sample value given H0 is p价值: 得到测试统计的可能性极端(≤或)比被观察的样品价值特定H0是 [translate] ...
How to Calculate the Appropriate Test Statistic and p-Value for the Chi-Square Test for Goodness of Fit Step 1 Identify the sample size {eq}n {/eq} and the categories of the random variables by {eq}1,2,3,..,k {/eq}. Set the null hypothesis {eq}H...
What is the effect on the value of the test statistic and the p-value of a test when the sample size decreases?P-ValueIn statistics, the P-value is defined as the probability of getting results as per the observed hypothesis test, assuming th...
Z值，标准差是已知的 Z
1) The test statistic follows a t distribution under null hypothesis. 2) The test can be used to find if the mean of a population is different from a known mean. 3) The test can be used to find out if the means of two samples are significantly different. Note that the two population...
通过LRT的命名,我们就能知道他用的核心值是likelihood value,其test-statistic如图中定义。 如果样本更倾向于Fθ0(x)的分布,那λ会偏大还是偏小? ——偏大!(为什么呢?)回忆一下likelihood value的含义:表示样本出现的可能性。 如果λ偏大,说明分子大分母小,那也就是Fθ0(x)下样本出现的概率 大于 Fθa(x)...