A test on world history was given to a group of individuals before and also after a film on the history of the world was presented.The results are given below.We want to determine if the film significantly increased the test scores.(For the following matched samples,let the difference "d" be d = after - before. )
a.Give the hypotheses for this problem.
b.Compute the test statistic.
c.At 95% confidence,test the hypotheses.
Definitions:
Absolute Advantage
The ability of a country, individual, company, or region to produce a good or service more efficiently than its competitors when using the same amount of resources.
Opportunity Cost
The benefit that is missed or given up when choosing one alternative over another.
Comparative Advantage
Comparative advantage occurs when a country can produce a good at a lower opportunity cost than another country.
Absolute Quantities
A term used to describe the total amount of a product, asset, or resource, measured independently and without comparison to other entities.
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