Parametric tests make assumptions that aspects of the data follow some sort of theoretical probability distribution. Non-parametric tests or distribution free methods do not, and are used when the ...

In statistical inference, or hypothesis testing, the traditional tests are called parametric ... distribution (such as the normal) except for a set of free parameters. Parametric tests are said to ...

Explain why and when a non-parametric test should be used or may be preferred for simple comparison over a parametric method Explain the general principles and process of performing a non-parametric ...

Although nonparametric statistics have the advantage of having to meet few assumptions, they are less powerful than parametric statistics ... follow a normal distribution, the maximum loss ...

Background In a bustling corporate office, Sarah, a finance manager at Apex Financial Solutions, was tasked with optimizing ...