A behaviorist has performed the following experiment. For each of 10 sets of identical twins who were born 30 years ago, he recorded their annual incomes, according to which twin was born first. The results (in $1,000s) are shown below. Can he infer at 5% significance level that there is a difference in income between the twins?
Definitions:
Production Possibility Frontier
A visual map outlying the highest possible production levels for two goods, considering a defined compilation of resources and other relevant factors.
Minimum Quantity
The smallest amount of a product that can be ordered or purchased at one time.
Gain From Trade
The advantage or improvement in outcome that countries or individuals achieve through the act of trading goods or services.
Productive
Refers to the effectiveness in producing a significant amount of output per unit of input.
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