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

question 82

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. If the computed value of chi-square is less than the critical value, reject the null hypothesis at a predetermined level of significance.

• 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.

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Definitions:

Preconceived Perceptions

Opinions or attitudes formed in advance without adequate information or experience.

Support Life

Activities or systems that provide essential assistance or enable living organisms to maintain health, well-being, and functionality.

All-or-Nothing Thinker

A cognitive distortion where individuals see situations as either completely perfect or a complete failure, with no middle ground.

Pros and Cons

The advantages and disadvantages of a particular decision, action, or situation.