Table 20-10 
*A Gini coefficient is a commonly used measure of income inequality, with values between 0 and 1 (0 corresponds to perfect equality whereby everyone has exactly the same income, and 1 corresponds to perfect inequality where one person has all the income, while everyone else has zero income) .
Source: The World Bank
-Refer to Table 20-10. Which country has the most unequal income distribution?
Definitions:
Null Hypothesis
A default hypothesis that there is no effect or no difference, and any observed difference is due to sampling or experimental error.
Interaction Effect
A phenomenon in which the effect of one independent variable on the dependent variable varies depending on the level of another independent variable.
Interaction Effect
In statistical analysis, refers to a situation where the effect of one independent variable on the dependent variable is different at various levels of another independent variable.
Alternative Hypothesis
An alternative hypothesis is a statement in hypothesis testing that is directly tested and proposes a statistically significant difference between data sets.
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