Which of the Following Conditions Is Needed Regarding the Chi-Squared

question 6

Multiple Choice

Which of the following conditions is needed regarding the chi-squared test statistic for the test of variance?

• A)The population random variable must be normal.
• B)The test statistic must be a non-negative number.
• C)The test statistic must have a chi-squared distribution with n − 1 degrees of freedom.
• D)All of these choices are true.

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Definitions:

Pacinian Corpuscle

Named for Italian anatomist Filippo Pacini (1812–1883). See lamellated corpuscle.

Sensory Receptor

A specialized cell or nerve ending that responds to specific stimuli, such as light, sound, or touch, and converts it into neural signals.

Deep Pressure

A type of firm tactile sensory input that is often calming and is used therapeutically to reduce chronic stress and anxiety.

Painful Stimuli

Refers to physical or chemical sources that cause pain and discomfort, signaling potential harm to the body.