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}$

---

Definitions:

World Price

The international market price of a product or commodity, influenced by global supply and demand conditions.

Free Trade

An economic policy that allows imports and exports between countries with minimal or no barriers to trade, such as tariffs or quotas, encouraging international commerce.

Imported

Brought into a country from abroad for the purpose of selling.

Net Welfare Loss

Describes the reduction in social welfare, often resulting from inefficiencies such as taxes, subsidies, tariffs, or monopolies, which distort market equilibrium.