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What Is an Abnormal Enlargement of the Prostate Gland Surrounding

question 125

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What is an abnormal enlargement of the prostate gland surrounding the urethra, leading to difficulty with urination?


Definitions:

Wilcoxon Rank Sum Test

The Wilcoxon Rank Sum Test is a nonparametric statistical test used to compare two independent samples, assessing whether their populations have the same distribution.

Chi-Squared Distribution

A statistical distribution used in hypothesis testing that is the distribution of a sum of the squares of k independent standard normal random variables.

9-point Scale

A scale often used in surveys and research to rate or assess opinions, attitudes, or behaviors, where 1 typically indicates the lowest extent and 9 the highest.

Significance Level

The probability of erroneously rejecting the true null hypothesis in statistical testing, often denoted by alpha.

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