In General, Why Do Researchers Do Null Hypothesis Testing

question 37

Multiple Choice

In general, why do researchers do null hypothesis testing?

• A) to decide whether a sample relationship represents a real relationship in the population
• B) to decide how strong a sample relationship is
• C) to decide whether the independent variable is causally related to the dependent variable
• D) none of the above

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Definitions:

Economic Profits

The total revenue of a business minus its explicit and implicit costs; a measure of incremental gain over the total costs, including opportunity costs.

Supply Curve

A graph showing the relationship between the price of a good and the quantity supplied by producers.

Long-run Equilibrium

A state in which all factors of production and outputs are variable, allowing for the adjustment of all inputs, leading to a balanced economic condition over time.

Zero Economic Profits

Occurs when a firm earns just enough revenue to cover its total costs, including opportunity costs, but no more.