The Null Hypothesis in the Kruskal-Wallis Test Is _______

question 83

Multiple Choice

The null hypothesis in the Kruskal-Wallis test is _______.

• A)all populations are identical
• B)all sample means are different
• C)x and y are not correlated
• D)the mean difference is zero
• E)all populations are not identical

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Definitions:

Serratus Posterior Superior

A muscle situated in the upper back that helps in elevating the ribs during inhalation.

Elevate the Ribs

The action of increasing the thoracic cavity volume to aid in inhalation, primarily performed by the intercostal muscles.

Internal Intercostals

Muscles located between the ribs that help with breathing by reducing the space in the chest during exhalation.

External Intercostals

Muscles located between the ribs that help expand the thoracic cavity during inspiration.