The Professor of a Business Statistics Class Wanted to Find

question 88

True/False

The professor of a business statistics class wanted to find out the average amount of time per week her students spent studying for the class. Among the 50 students in her class, 20% were freshmen, 50% were sophomores and 30% were juniors. She decided to draw 2 students randomly from the freshmen, 5 randomly from the sophomores and 3 randomly from the juniors. This is an example of a systematic sample.

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Definitions:

Rank-order Consistency

The degree to which the relative ordering of individuals on a particular trait remains the same over time, even if the absolute level of the trait changes.

Population

The total number of individuals or organisms within a specified area or group.

Cross-sectional

A form of research that focuses on analyzing data from a population or its representative part, specifically at a certain time frame.

Self-discipline

The ability to control one's feelings, impulses, and actions to achieve long-term goals.