We Are Interested in Testing Whether the Variance of a Population

question 29

Multiple Choice

We are interested in testing whether the variance of a population is significantly more than 625. The null hypothesis for this test is

• A) H₀: σ² > 625.
• B) H₀: σ² ≤ 625.
• C) H₀: σ² ≥ 625.
• D) H₀: σ² ≤ 25.

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Definitions:

Depressant

A category of psychoactive drugs that reduce arousal and stimulation, affecting the central nervous system to slow down bodily functions.

Nervous System

A complex network of nerves and cells that transmit signals between different parts of the body, coordinating its actions and sensory information.

Activity Decrease

A reduction in the level of physical or mental action or the frequency of activities.

Social Control

Mechanisms, strategies, and institutions society uses to regulate individual behavior and maintain social order.