If We Wanted to Estimate a 98% Confidence Interval for an Independent

question 29

Multiple Choice

If we wanted to estimate a 98% confidence interval for an independent samples t test with sample sizes of n = 11 and n = 12, what t-values would we use?

• A) ±2.819
• B) ±2.831
• C) ±2.518
• D) ±2.508

---

Definitions:

Senescence

The process of biological aging at the cellular level, marked by the gradual deterioration of function and increased risk of death.

Wrinkles

Lines, creases, or folds in the skin that primarily appear as people age due to loss of skin elasticity and moisture.

Hearing Aids

Electronic devices designed to improve the hearing of those with hearing loss by amplifying sound.

Severe Brain Loss

A significant reduction in brain tissue, which can result from various conditions such as Alzheimer's disease, trauma, or other neurodegenerative diseases, leading to cognitive decline and functional impairment.