People Who Are Not Contacted or Who Refuse to Cooperate

question 62

Multiple Choice

People who are not contacted or who refuse to cooperate are called:

• A)random errors
• B)biased respondents
• C)sample selection errors
• D)nonrespondents

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Definitions:

Chi-Squared Distribution

A probability distribution that is commonly used in hypothesis testing and models the distribution of sum of squares of independent standard normal random variables.

Chi-Square Distribution

A probability distribution that is used in statistical significance tests, especially for categorical data.

Degrees of Freedom

The quantity of distinct values or amounts that a statistical distribution can accept.

Population Variance

A measure of the spread of a population’s values, indicating how much the individuals within the population differ from the population mean.