Chi-Square Determines If There Is Support for a Relationship Between

question 4

Multiple Choice

Chi-square determines if there is support for a relationship between variables by comparing:

• A) a sample mean with a population mean.
• B) the mean of two research samples.
• C) observed frequencies and expected frequencies.
• D) observed frequencies and degrees of freedom.

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Definitions:

Addiction

A complex condition, a brain disorder characterized by compulsive engagement in rewarding stimuli despite adverse consequences.

Cocaine

A powerful and addictive stimulant drug extracted from the leaves of the coca plant.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, highly addictive and illegal.

Caffeine

A stimulant chemical found in coffee, tea, and various other foods and drinks that affects the central nervous system, enhancing alertness and reducing fatigue.