A Non-Parametric Method to Compare Two Populations, When the Samples

question 104

Short Answer

A non-parametric method to compare two populations, when the samples are independent but the assumptions behind the independent samples t-test are violated, is the: $\begin{array}{|l|l|}\hline A&\text { Wilcoxon rank sum test.}\\\hline B&\text {sign test. }\\\hline C&\text {matched pairs \( t \)-test. }\\\hline D&\text {Wilcoxon signed rank sum test. }\\\hline \end{array}$

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Definitions:

Record

A document or entity that preserves information or data for future reference.

Law of Averages

A layman's term often misused to suggest that a future event is likely to occur to balance out a statistical deviation, though not a formal statistical principle.

Independent Events

Two or more events whose outcomes do not affect each other's probabilities of occurring.

Positive Difference

The result of subtracting a smaller number from a larger number, ensuring a non-negative result.