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Nonparametric Statistics for health Care Research
Historically, the most popular statistical inferential techniques that have appeared in the research literature are those that make assumptions about the nature of the populations from which the data are drwan. These techniques are called parametrics, especially the population mean and variance.rn<br>rn<br>rnParametrics tests share a number of common characteristics. First, it is expected that there is independence of observations except when the data are paired. The data also are expected to be randomly drawn from a normally distributed, or bell-shaped, population of values.
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