Answer:
The production and price of goods are determined by supply and demand.
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Explanation:
Based on the situation, that was an example of : Free-Rider problems
Free-rider problems refer to a condition when an individual either consume more than the fair share or pay less than the fair share.
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Answer: A paired-samples t-test
Explanation:Paired-samples t-tests are used to test whether data from two related samples are different from one another. It can also be used to analyze data from many studies where one score depends on the other score.