To compare the effect of weather on sales of soft drinks, a distributor surveyed people in two regions of the country and asked if they purchased soft drinks in the last month. The following are the results. The distributor would like to know if there is a difference in sales between the two regions. 
What is the null hypothesis?
Definitions:
Survival of the Fittest
A concept from evolutionary theory suggesting that only those organisms best adapted to their environment will survive and reproduce.
Karl Marx
A 19th-century philosopher, economist, and political theorist best known for his works on communism and critique of capitalism, co-authoring the "Communist Manifesto".
Émile Durkheim
A French sociologist best known for his foundational contributions to the field of sociology, including his theories on social cohesion, collective consciousness, and the social basis of religion.
Theoretical Approaches
Refers to the various frameworks or methodologies used to analyze and interpret social phenomena.
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