If the Expected Frequencies Are Equal to Observed Frequencies for a Chi-Square

question 1

Multiple Choice

If the expected frequencies are equal to observed frequencies for a chi-square test for independence,what do we conclude?

• A) the degrees of freedom for the test are equal to 0
• B) the test statistic value is equal to 0
• C) the frequencies observed fit well with the frequencies expected
• D) the test statistic value is equal to 0 and the frequencies observed fit well with the frequencies expected

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Definitions:

Night Terrors

Intense episodes of fear that occur during sleep, often causing the affected individual to scream, kick, and panic, but without any recollection of the dream or event upon waking.

Circadian Symptoms

Manifestations or changes in physical, mental, or behavioral patterns that follow a roughly 24-hour cycle.

REM Sleep

A stage of sleep characterized by rapid eye movements, dreaming, and increased brain activity similar to wakefulness.

Non-REM Sleep

Non-REM sleep refers to the part of the sleep cycle that includes deep sleep stages but not rapid eye movement (REM) sleep, characterized by slower brain waves and physical recovery.