When Testing the Difference Between Two Population Means,the Sample Variances

question 38

Multiple Choice

When testing the difference between two population means,the sample variances are pooled to estimate the population variance when ________.

• A)the population variances are known and equal
• B)the population means are known
• C)the population variances are assumed unequal and unknown
• D)the population variances are assumed equal but unknown

---

Definitions:

Canon Law

The system of laws and regulations made or adopted by ecclesiastical authority, for the government of the Christian organization and its members.

Legislative Bodies

Elected governmental institutions with the authority to create, amend, and repeal laws.

Constitution Act, 1982

A significant part of Canada’s Constitution, introducing amendments including the Charter of Rights and Freedoms and procedures for constitutional amendments.

Supremacy of Parliament

The legal principle that legislatures have the ultimate authority over other government institutions, including courts, within a Parliamentary system.