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univariate test

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  • Shapiro-Wilk-Test — Der Shapiro Wilk Test ist ein statistischer Signifikanztest, der die Hypothese überprüft, dass die zugrunde liegende Grundgesamtheit einer Stichprobe normalverteilt ist. Die Nullhypothese H0 nimmt an, dass eine Normalverteilung der… …   Deutsch Wikipedia

  • Normality test — In statistics, normality tests are used to determine whether a data set is well modeled by a normal distribution or not, or to compute how likely an underlying random variable is to be normally distributed. More precisely, they are a form of… …   Wikipedia

  • Student's t-test — A t test is any statistical hypothesis test in which the test statistic follows a Student s t distribution if the null hypothesis is supported. It is most commonly applied when the test statistic would follow a normal distribution if the value of …   Wikipedia

  • Wald test — The Wald test is a statistical test, typically used to test whether an effect exists or not. In other words, it tests whether an independent variable has a statistically significant relationship with a dependent variable. Suppose an economist,… …   Wikipedia

  • Score test — A score test is a statistical test of a simple null hypothesis that a parameter of interest heta isequal to some particular value heta 0. It is the most powerful test when the true value of heta is close to heta 0.ingle parameter testThe… …   Wikipedia

  • Grubbs' test for outliers — Many statistical techniques are sensitive to the presence of outliers. For example, simple calculations of the mean and standard deviation may be distorted by a single grossly inaccurate data point.Checking for outliers should be a routine part… …   Wikipedia

  • Neyer d-optimal test — The Neyer D Optimal Test is one way of analyzing a sensitivity test of explosives as described by Barry T. Neyer in 1994. This method has replaced the earlier Bruceton analysis or Up and Down Test that was devised by Dixon and Mood in 1948 to… …   Wikipedia

  • Ramsey RESET test — The Ramsey Regression Equation Specification Error Test (RESET) test (Ramsey, 1969) is a general specification test for the linear regression model. More specifically, it tests whether non linear combinations of the estimated values help explain… …   Wikipedia

  • Hausman test — The Hausman test is a statistical test in econometrics named after Jerry Hausman. The test evaluates the significance of an estimator versus an alternative estimator. Per Hausman, only overidentifying restrictions (assumptions) can be tested… …   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

  • Multivariate normal distribution — MVN redirects here. For the airport with that IATA code, see Mount Vernon Airport. Probability density function Many samples from a multivariate (bivariate) Gaussian distribution centered at (1,3) with a standard deviation of 3 in roughly the… …   Wikipedia

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