I Chi-Square Test Statistic Used in a Goodness-Of-Fit Test Has

question 116

Multiple Choice

i. chi-square test statistic used in a goodness-of-fit test has k - 2 degrees of freedom. ii. A goodness-of-fit test is a nonparametric test involving a set of observed frequencies and a corresponding set of expected frequencies.
iii. For a goodness-of-fit test, the following are possible null and alternate hypotheses.
Null: Sales are uniformly distributed among the five locations.
Alternate: Sales are not uniformly distributed among the five locations.

• 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:

Catecholamines

A class of neurotransmitters that include dopamine, norepinephrine, and epinephrine, which are involved in flight or flight responses, mood regulation, and cognitive alertness.

Endorphins

Natural chemicals produced in the brain that act as neurotransmitters to reduce pain and enhance pleasure.

Hormones

Chemical messengers produced by the endocrine glands that regulate various bodily functions by traveling through the bloodstream to target organs.

Frustration-Aggression Hypothesis

The frustration-aggression hypothesis suggests that aggression is often the result of frustration, or blocked effort to achieve a goal.