I the Number of Degrees of Freedom Appropriate for the Chi-Square

question 117

Multiple Choice

i. The number of degrees of freedom appropriate for the chi-square goodness-of-fit test is the number of categories minus 2. ii. If there are extremely large differences between observed and expected frequencies the correct decision is to reject H₀.
iii. There are 2 degrees of freedom for a contingency table classifying three levels of income with each gender.

• 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) (i), (ii), and (iii) are all false statements.

Understand and identify the most common chromosomal disorder leading to intellectual disability.

Recognize the most prevalent metabolic disorder associated with intellectual disability.

Define and distinguish between different pediatric elimination disorders.

Know the occurrence rate of phenylketonuria (PKU) in children.

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