We Are Interested in Testing to See If the Variance

question 12

Multiple Choice

We are interested in testing to see if the variance of a population is less than 7. The correct null hypothesis is

• A) σ < 7.
• B) σ² ≥ 7.
• C) σ < 49.
• D) σ² ≥ 49.

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Definitions:

Monopoly

The exclusive possession or control of the supply of or trade in a commodity or service by a single company or group.

Mass Mediums

Channels or technologies used to deliver content to a large audience, such as television, radio, newspapers, and the internet.

Telegraph

A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.

Radio

A technology for transmitting audio content wirelessly to a broad audience, historically significant in the development of mass media.