Glossary Term
Statistical Imputation
The substitution of some value for a missing data point or a missing component of a data point.
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Glossary Term
The substitution of some value for a missing data point or a missing component of a data point.
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The goodness of fit statistic for the terminal elimination phase, adjusted for the number of time points used in the estimation of Lambda z.
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A statistical technique which helps in making inference whether three or more samples might come from populations having the same mean; specifically, whether the differences among the samples might be caused by chance variation.
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Chi-square test is a statistical test for testing the null hypothesis that the distribution of a discrete random variable coincides with a given distribution. It is one of the most popular goodness-of-fit tests.
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The degree to which two or more quantities or events are linearly associated, a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the others.
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A statistical method of partitioning a sample of data into subsets such that the analysis is initially performed on a single subset, while the other subsets are retained for subsequent use in confirming and validating the initial analysis.
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A statistical method used for multiple testing corrections to control the expected proportion of false positives (Type I error) among rejected tests or hypotheses. It is less stringent than other multiple testing corrections and thereby, will allow a percentage of false positives.
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In statistical inference procedures (hypothesis tests and confidence intervals), nonparametric procedures are those that are relatively free of assumptions about population parameters.
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A statistical method to test if observations are significant or due to chance. It proposes that no statistical significance exists in a set of given observations and attempts to show that no variation exists between variables or that a single variable is no different than its mean. It is presumed to be true until statistical evidence nullifies it for an alternative hypothesis.
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In statistical inference procedures (hypothesis tests and confidence intervals), parametric procedures are those that incorporate assumptions about population parameters.
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The goodness of fit statistic for the terminal elimination phase.
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A measure of the range of values in a set of numbers. Standard deviation is a statistic used as a measure of the dispersion or variation in a distribution, equal to the square root of the arithmetic mean of the squares of the deviations from the arithmetic mean.