An animal geneticist is trying to pick an appropriate species of fish for repopulating a lake. He wants to compare how long certain types of fish live. Species A is used for a control group and Species B serves as the experimental group. A random sample of fish from both species is drawn and the following ages are recorded for life span in months. 
a. State the nondirectional alternative hypothesis.
b. State the null hypothesis
c. Analyze the data with a nonparametric test. What do you conclude, using a = 0.05 2 tail ?
Definitions:
Natural Monopolies
A type of monopoly that arises due to high infrastructure costs and other barriers to entry which make it inefficient for more than one provider to operate (e.g., water supply).
Single Producer
Represents a monopoly scenario where only one entity is responsible for the production and sale of a particular good or service.
Market Power
The ability of a company to manipulate the price of goods or services in the market to its advantage.
Market Power
The ability of a firm or group of firms to manipulate or influence the price or supply of a good or service in the market.
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