In Testing the Difference Between Two Population Means for Which

question 90

Multiple Choice

In testing the difference between two population means for which the population variances are unknown and not assumed to be equal,two independent samples are drawn from the populations.Which of the following tests is appropriate?

• A)z-test
• B)pooled-variances t-test
• C)unequal variances t-test
• D)None of these choices.

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Definitions:

Missouri Compromise

An act of Congress in 1820 admitting Missouri as a slave state and Maine as a free state, maintaining a balance between slave and free states.

Louisiana Purchase

The Louisiana Purchase was the acquisition of the Louisiana territory by the United States from France in 1803, approximately doubling the size of the U.S. and significantly expanding its territory westward.

Democratic-Republican Philosophy

A political ideology that emphasizes the values of democracy and republicanism, advocating for a government by the people, for the people, and with a focus on civil liberties.

Jefferson's Tenure

The period during which Thomas Jefferson served as the President of the United States, from 1801 to 1809, marked by significant events such as the Louisiana Purchase.