Researchers Were Interested in Whether Relaxation Training Decreases the Number

question 82

Multiple Choice

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences.They randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training.Which statistical analysis should be performed to answer the researchers' question?

• A) single-sample t test
• B) z test
• C) independent-samples t test
• D) dependent-samples t test

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Definitions:

Equilibrium Quantity

The quantity of goods or services at which quantity demanded equals quantity supplied, leading to market equilibrium.

Perfectly Inelastic

A situation in demand where the quantity demanded does not change regardless of any change in price. This means the demand curve is a vertical line, indicating total unresponsiveness to price changes.

Excise Tax

A tax levied on specific goods or services, such as tobacco or gasoline, often imposed to discourage consumption or generate revenue.

Incidence

Refers to the allocation or distribution of the economic impact of a particular tax among various parties.