A Researcher Is Conducting a Study on Internet Use

question 28

Multiple Choice

A researcher is conducting a study on Internet use.He decides to first categorize the population by education level (high school, college graduate, advanced degree, etc.) and then survey a select number from each category.This sampling strategy is called ________________________ .

• A)Systematic
• B)Cluster
• C)Random
• D)Judgmental
• E)Stratified

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Definitions:

Level of Significance

The threshold below which a p-value is considered to indicate a statistically significant result, typically set at 0.05 or 5%.

Degrees of Freedom

Represents the number of independent values or quantities which can be assigned to a statistical distribution without violating any constraining conditions.

Test Statistic

A standardized value used in statistical hypothesis testing to determine whether to reject the null hypothesis.

Uniformly Distributed

A distribution that has constant probability across the entire range of possible outcomes.