)In Which Case Would Testing the Null Hypothesis Involve a Two-Tailed

question 15

Multiple Choice

) In which case would testing the null hypothesis involve a two-tailed statistical test?

• A)H₁: Incentive pay for teachers does affect student achievement
• B)H₁: Higher sales tax rates does not reduce state tax revenues
• C)H₁: Extending the duration of unemployment benefits does not increase the length of joblessness
• D)H₁: Smoking does not reduce life expectancy

---

Definitions:

Dendritic Growth

The process by which neurons grow dendrites, the branch-like extensions that enable connections with other neurons for the transmission of information.

Stroke

A medical condition caused by the interruption of blood flow to the brain, resulting in cell death and potentially leading to significant physical and cognitive impairments.

Neurons

Electrically excitable cells that process and transmit information through electrical and chemical signals, serving as the basic unit of the nervous system.

Epidermal Growth Factor

A protein that stimulates cell growth, proliferation, and differentiation by binding to its receptor EGFR, involved in the repair of tissues and organs.