Which of the Following Statements Is True for Chi-Squared Tests

question 54

Multiple Choice

Which of the following statements is true for chi-squared tests?

• A) Testing for equal proportions is identical to testing for goodness-of-fit.
• B) The number of degrees of freedom in a test of a contingency table with r rows and c columns is (r - 1)(c - 1).
• C) The number of degrees of freedom in a goodness-of-fit test with k categories is k - 1.
• D) All of these choices are true.

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Definitions:

Otorhinolaryngology

A medical specialty focused on the treatment of conditions affecting the ears, nose, and throat (ENT) as well as related structures of the head and neck.

Gastroenterology

The branch of medicine focused on the digestive system and its disorders, including the stomach, intestines, gallbladder, and liver.

Rheumatology

A branch of medicine focusing on the diagnosis and treatment of rheumatic diseases that affect the joints, muscles, and bones.

Endocrinology

The branch of medicine and biology dealing with the endocrine system, its diseases, and its specific secretions called hormones.