In Testing for the Significance of the Difference Between Two

question 5

Multiple Choice

In testing for the significance of the difference between two sample means when the sample size is small,we may assume equal population variances if

• A)sample sizes are exactly the same.
• B)sample sizes are varied.
• C)sample sizes are approximately equal.
• D)none of these,we cannot assume equal population variance.

---

Definitions:

Life Expectancy

The typical duration someone is anticipated to live.

World Nations

Distinct geopolitical entities, typically recognized as sovereign states, that make up the world.

Kidney Disease

A broad term for conditions that impair the function of the kidneys, leading to their inability to filter waste products from the blood effectively.

Public Sanitation

Programs and practices aimed at maintaining clean and hygienic public spaces to prevent disease and promote health.