I for a Goodness-Of-Fit Test, the Number of Degrees of Freedom

question 18

Multiple Choice

i. For a goodness-of-fit test, the number of degrees of freedom is determined by k - 2, where k is the number of categories.
Ii) The sum of the expected frequencies in a goodness-of-fit test need not equal the sum of the observed frequencies.
Iii) A goodness-of-fit test is a nonparametric test involving a set of observed frequencies and a corresponding set of expected frequencies.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and (ii) are correct statements, but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (iii) is a correct statement, but (i) and (ii) are false.

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Definitions:

Excessive Tension

A state of being overstressed or strained, in physical or emotional contexts.

Intercostal Nerves

The intercostal nerves are part of the somatic nervous system and run between the ribs to innervate the chest and abdominal walls.

Thoracic Spinal Nerves

Nerves that emerge from the spinal cord in the thoracic (middle) area of the spine, involved in numerous body functions including respiration.

Spinal Nerve Routes

The paths taken by spinal nerves as they exit the spinal cord and branch out to various parts of the body.