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Using Map (in the textbook) 31.3, describe the locations of oil wells. Which countries are the members of OPEC? How does oil become a weapon? How important are the geostrategic maritime chokeholds of the Suez Canal, Bab al Mandeb, and the Strait of Hormuz?
Wilcoxon Signed Rank Test
A nonparametric test used to compare two paired groups to determine if their mean ranks differ.
Z-Statistic
A statistical measure that indicates how many standard deviations an element is from the mean of a distribution.
Rejection Region
The range of values for which the null hypothesis is rejected in hypothesis testing, indicating statistical significance.
Significance Level
A statistical term that determines the threshold at which a null hypothesis is rejected.