Investment A: 
The cash flows for three projects are shown above. The cost of capital is 7.5%. If an investor decided to take projects with a payback period two years or less, which of these projects would he take?
Definitions:
National Survey
A large-scale survey conducted across a nation to collect various data from a representative sample of its population.
Test Statistic
A test statistic is a standardized value calculated from sample data during a hypothesis test. It's compared to a critical value to decide whether to reject the null hypothesis.
Age Distribution
A representation of the proportion of individuals of different ages within a specific population.
Chi-Square Test Of Independence
An analytical tool in statistics used to find out if there's an important link between two variables that are classified into categories.
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