Signed rank statistics for coherent predictions

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P R Rosenbaum1

  • 1Department of Statistics, University of Pennsylvania, Philadelphia 19104-6302, USA.

Biometrics
|June 1, 1997
PubMed

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Ranks

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Spearman's Rank Correlation Test01:20

Spearman's Rank Correlation Test

Spearman's rank correlation test, also known as Spearman's rho, is a nonparametric method for assessing the strength and direction of association between two variables. This test is particularly valuable when the data distribution is unknown or when the assumption of normality does not hold. Named after the English psychologist and statistician Dr. Charles Edward Spearman, it serves as the nonparametric counterpart to Pearson's correlation coefficient.
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Friedman Two-way Analysis of Variance by Ranks

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Confidence Coefficient01:24

Confidence Coefficient

The confidence coefficient is also known as the confidence level or degree of confidence. It is the percent expression for the probability, 1-α, that the confidence interval contains the true population parameter assuming that the confidence interval is obtained after sufficient unbiased sampling; for example, if the CL = 90%, then in 90 out of 100 samples the interval estimate will enclose the true population parameter. Here α is the area under the curve, distributed equally under both the...
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The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
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