The test for high-density lipoprotein cholesterol (HDL-C) is used as part of a lipid profile to screen for unhealthy levels of lipids and to determine an individual's risk of developing heart disease and to help make decisions about what treatment to use if there is borderline or high risk.
statistical procedure - a method of analyzing or representing statistical data; a procedure for calculating a statistic. statistical method. method - a way of doing something, especially a systematic way; implies an orderly logical arrangement (usually in steps)
The term non-parametric applies to the statistical method used to analyse data, and is not a property of the data.1 As tests of significance, rank methods have almost as much power as t methods to detect a real difference when samples are large, even for data which meet the distributional requirements.