This article considers the problem of testing marginal homogeneity in a 2 2 contingency table. We first review some well-known conditional and unconditional p-values appeared in the statistical literature. Then we treat the p-value as the test statistic and use the unconditional approach to obtain...
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。
The p-value approach to hypothesis testing uses the calculated probability to determine whether there is evidence to reject the null hypothesis. This determination relies heavily on the test statistic, which summarizes the information from the sample relevant to the hypothesis being tested. The null h...
Question: Calculate the test statistic and the p-value when {eq}\bar{x} {/eq} = 135, {eq}s {/eq} = 50, and {eq}n {/eq} = 100. Use a 5% significance level. {eq}H_0: \mu = 150 {/eq} {eq}H_1: \mu < 150 {/e...
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 probabili...
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theteststatisticandtheP-value. TheP-valueofthetest,assumingH 0 istrue,istheprobability thattheteststatisticwouldtakeavalueasextremeormore extremethanthatactuallyobserved. Text: “AfterassessingtheconsequencesofTypeIandTypeII errors,identifythelargestαthatistolerableforthe ...
p-value : A p-value is the probability of obtaining a test statistic at least as extreme as the one that was observed, assuming that Ho is true. 什么是 p 值呢?它是一个概率值。如果零假设为真,现有的检验统计量出现的概率就是 p-value。 以例题2为例,在零假设为真的条件下,检验统计量为0.2...
p_value: The p-value is the probability, assuming the null hypothesis is true, that we obtain a value at least as large as our test statistic from our sample data. Significance Level: The significance level captures the risk of making a mistake by rejecting t...