All of the Factors Listed Below Favor the Use of Probability

question 15

Multiple Choice

All of the factors listed below favor the use of probability sampling except (Table 11.5 in the text) .

• A) highly accurate estimates of population characteristics are required
• B) the nature of the research is conclusive
• C) the population is heterogeneous with respect to variables of interest
• D) nonsampling errors are likely to be an important factor

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Definitions:

Prediction Interval

A range of values that is likely to include the value of an unknown parameter for a future observation with a specified probability.

Heteroscedasticity

A condition in regression analysis where the variance of errors or the variability of a dependent variable is unequal across all levels of an independent variable.

Residuals

The differences between observed values and the values predicted by a model, indicating the error in predictions.

Predicted Values

The expected values calculated from a regression or other predictive models based on specific input variables.