If a Population Is Skewed, Based on the Central Limit

question 21

Multiple Choice

If a population is skewed, based on the Central Limit Theorem, what is a good rule of thumb for assuming the sampling distribution of is approximately normal?

• A) np ≥ 5
• B) n ≥ 30
• C) μ ≥ 30
• D) n ≤ 30

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Definitions:

Interrupted Time Series Design

A quasi-experimental design where observations are made over time both before and after an intervention to detect whether the intervention has an effect distinct from underlying trends.

Observation

involves systematically capturing or recording behavior, phenomena, or events as they naturally occur, without manipulation by the observer.

Treatment

In research, an intervention or condition that is applied to a group of subjects to observe its effects, often compared to a control group without the intervention.

Extended Period

A length of time that is longer than average or expected, often used in the context of research to indicate the duration of a study or observation.