翻译 http://www.sthda.com/english/wiki/one-sample-t-test-in-r](http://www.sthda.com/english/wiki/one-sample-t-test-in-r)什么是 one-sample t-test? one-sample t-test 就是比较标准均值μ（理论值或者假设值）和样本均值。 通常理论均值来自：注意： one-sample t-test只...
one-sample t-test 计算公式: image.png m 是样本均值mean n是样本大小 s是样本标准差,n-1自由度 μ是理论值 We can compute the p-value corresponding to the absolute value of the t-test statistics (|t|) for the degrees of freedom (df): df=n−1. 如何理解这个结果? 如果p-value小于等于...
单样本t检验(检验科比-布莱恩特和阿伦-艾弗森平均每场犯规次数的均值是否为2.7)Analyze → Compare Means → One-Sample T Test。
Paired Samplettest Thepaired samplettestis used to compare the means of two related groups of samples. Put into other words, it is used in a situation where you have two values (i.e., a pair of values) for the same group of samples. Often these two values are measured from the same...
Therefore, p = 0.73 means that there's a 0.73 probability of finding an absolute mean difference of at least 0.71 points. Roughly speaking, the sample mean we found is likely to occur if the null hypothesis is true.Effect SizeThe only effect size measure for a one-sample t-test is ...
Assumption #2: The data are independent (i.e., not correlated/related), which means that there is no relationship between the observations. This is more of a study design issue than something you can test for, but it is an important assumption of the one-sample t-test.Fortunately...
One Sample Variance Test To test the variance, put the standard deviation (Stdev) test value in cell E6. The p-value will calculate in F6. Note: TInv means "T Inverse" and is used in calculating the upper and lower confidence intervals. ...
One way to reason about this is to look at the formula and see what effect different means would have on the computation. If the sample mean had been 85 instead of 79.17, the resultingt‐value would have been larger. Because the sample mean is in the numerator, the larger it is, the...
Therefore, it can be concluded that the population means are statistically significantly different.Note: We present the output from the one-sample t-test above. However, since you should have tested your data for the assumptions we explained earlier in the Assumptions section, you will also need...
2. Assumptions One Sample T-Test Results from statistical procedures can only be taken seriously insofar as relevant assumptions are met. For a one-sample t-test, these are independent and identically distributed variables (or, less precisely, “independent observations”); ...