two-tailed approximation

См. также в других словарях:

• Mann–Whitney U — In statistics, the Mann–Whitney U test (also called the Mann–Whitney–Wilcoxon (MWW) or Wilcoxon rank sum test) is a non parametric statistical hypothesis test for assessing whether one of two samples of independent observations tends to have… …   Wikipedia

• List of statistics topics — Please add any Wikipedia articles related to statistics that are not already on this list.The Related changes link in the margin of this page (below search) leads to a list of the most recent changes to the articles listed below. To see the most… …   Wikipedia

• Fisher's exact test — is a statistical significance test used in the analysis of categorical data where sample sizes are small. It is named after its inventor, R. A. Fisher, and is one of a class of exact tests. Fisher devised the test following a comment from Muriel… …   Wikipedia

• List of Touhou Project characters — This is a list of the characters that belong to the Touhou Project, a series of games by ZUN from Team Shanghai Alice. Most Touhou characters reside in a fictional realm called Gensokyo, where humans and yōkai coexist. Though the yōkai do often… …   Wikipedia

• P-value — In statistical significance testing, the p value is the probability of obtaining a test statistic at least as extreme as the one that was actually observed, assuming that the null hypothesis is true. One often rejects the null hypothesis when the …   Wikipedia

• Cochran's Q test — In statistics, in the analysis of two way randomized block designs where the response variable can take only two possible outcomes (coded as 0 and 1), Cochran s Q test is a non parametric statistical test to verify if k treatments have identical… …   Wikipedia

• Page's trend test — In statistics, the Page test for multiple comparisons between ordered correlated variables is the counterpart of Spearman s rank correlation coefficient which summarizes the association of continuous variables. It is also known as Page s trend… …   Wikipedia

• Mann-Whitney U — In statistics, the Mann Whitney U test (also called the Mann Whitney Wilcoxon (MWW), Wilcoxon rank sum test, or Wilcoxon Mann Whitney test) is a non parametric test for assessing whether two samples of observations come from the same distribution …   Wikipedia

• Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function …   Wikipedia

• Statistical inference — In statistics, statistical inference is the process of drawing conclusions from data that are subject to random variation, for example, observational errors or sampling variation.[1] More substantially, the terms statistical inference,… …   Wikipedia

• Operational amplifier — A Signetics μa741 operational amplifier, one of the most successful op amps. An operational amplifier ( op amp ) is a DC coupled high gain electronic voltage amplifier with a differential input and, usually, a single ended output.[1] An op amp… …   Wikipedia