Concerning the Runs Test, a Normal Approximation Is Appropriate When

question 16

Multiple Choice

Concerning the runs test, a normal approximation is appropriate when:

• A) n ≥ 30.
• B) the number of observations in both categories is more than 10 each.
• C) the number of categories of the variable ( ) is at least 3.
• D) the expected value of each category is at least 5.

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Definitions:

Outcome Study

An investigation designed to assess the results or outcomes of specific interventions or treatments in order to determine their effectiveness.

Inclusion Criteria

The set of guidelines or characteristics required for an individual to participate in a research study or clinical trial.

Causal Relationship

The relationship between two variables where changes in one variable directly cause changes in the other.

Statistically Significant

A determination that the observed results in a study are unlikely to have occurred by chance, indicating a real effect within a predetermined level of confidence.