In mathematics, the ratio test is a test (or "criterion") for the convergence of a series
where each term is a real or complex number and an is nonzero when n is large. The test was first published by Jean le Rond d'Alembert and is sometimes known as d'Alembert's ratio test or as the Cauchy ratio test.[1]
In mathematics, the ratiotest is a test (or "criterion") for the convergence of a series ∑ n = 1 ∞ a n , {\displaystyle \sum _{n=1}^{\infty }a_{n},} where...
likelihood ratios are used for assessing the value of performing a diagnostic test. They use the sensitivity and specificity of the test to determine...
The sequential probability ratiotest (SPRT) is a specific sequential hypothesis test, developed by Abraham Wald and later proven to be optimal by Wald...
In finance, the quick ratio, also known as the acid-testratio is a type of liquidity ratio, which measures the ability of a company to use its near-cash...
also known as a "bit error ratio tester" or bit error rate test solution (BERTs) is electronic test equipment used to test the quality of signal transmission...
multiplier test and the likelihood-ratiotest, the Wald test is one of three classical approaches to hypothesis testing. An advantage of the Wald test over...
plasma is extracted from the test tube and placed into a measuring test tube (Note: for an accurate measurement, the ratio of blood to citrate needs to...
likelihood-ratiotest (LRT), which for these data give p ≈ 0.00064 {\displaystyle p\approx 0.00064} (see § Deviance and likelihood ratiotests below). This...
diverges. If r = 1, the ratiotest is inconclusive, and the series may converge or diverge. This is also known as the nth root test or Cauchy's criterion...
Testing UK". cbrtesting.com. Retrieved 23 May 2019. Jamal, Haseeb. "CBR Test". AboutCivil.Org. Retrieved 23 September 2019. California Bearing Ratio Test...
odds ratio (OR) is a statistic that quantifies the strength of the association between two events, A and B. The odds ratio is defined as the ratio of the...
5^{n}|}}={\sqrt {.5}}<1.} This example shows how the root test is stronger than the ratiotest. The ratiotest is inconclusive for this series if n {\displaystyle...
true, the likelihood ratiotest, the Wald test, and the Score test are asymptotically equivalent tests of hypotheses. When testing nested models, the statistics...
ratio Lies, damned lies, and statistics Life expectancy Life table Lift (data mining) Likelihood function Likelihood principle Likelihood-ratiotest Likelihood...
The logrank test, or log-rank test, is a hypothesis test to compare the survival distributions of two samples. It is a nonparametric test and appropriate...
Bayes factor can be thought of as a Bayesian analog to the likelihood-ratiotest, although it uses the integrated (i.e., marginal) likelihood rather than...
freedom. The Likelihood-ratiotest is another IRT based method for assessing DIF. This procedure involves comparing the ratio of two models. Under model...
nitrazine paper test and fern test. One main test that is performed on amniotic fluid is the L/S ratiotest (lecithin/sphingomyelin). This test is used to...
the likelihood ratio. In frequentist inference, the likelihood ratio is the basis for a test statistic, the so-called likelihood-ratiotest. By the Neyman–Pearson...
of hypothesis testing says that a good criterion for the selection of hypotheses is the ratio of their probabilities (a likelihood ratio). A simple method...
(condition) ratios, yielding likelihood ratios in diagnostic testing. Taking the ratio of one of these groups of ratios yields a final ratio, the diagnostic...
skewness and kurtosis tests generalize the moment tests to the multivariate case. Other early test statistics include the ratio of the mean absolute deviation...
used in experimental or survey work. The ratio estimates are asymmetrical and symmetrical tests such as the t test should not be used to generate confidence...
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