When the Null Hypothesis in the Chi Square Test for Independence

question 30

Multiple Choice

When the null hypothesis in the chi square test for independence is true, there should be________.

• A) large difference between the observed frequencies and the expected frequencies.
• B) little difference between the observed frequencies and the expected frequencies.
• C) no difference between the observed frequencies and the marginals.
• D) no difference between the row and the column marginals.

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Definitions:

Tall Narrow Pelvis

A description of a pelvic shape that is elongated vertically with a narrower width, affecting childbirth mechanics.

Pelvis

The lower part of the torso in human and vertebrates, comprising hip bones surrounding and protecting organs in the abdominopelvic cavity.

Foramen Magnum

The large opening at the base of the skull through which the spinal cord passes to connect with the brain.

Bipedalism

The ability to walk on two legs, a characteristic feature of humans and our ancestors that allows for a range of motion and energy efficiency.