The EPA's Goal of Eliminating All Pollutants Entering Our Waterways

question 72

True/False

The EPA's goal of eliminating all pollutants entering our waterways by 1985 was utterly unrealistic.

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Definitions:

Critical Value

A threshold point on the test distribution that is compared against the test statistic to determine whether to reject the null hypothesis.

Independent Variables

Variables in an experiment that are manipulated or changed by the researcher to investigate their effect on dependent variables.

Chi-square Test

A statistical test that assesses the significance of the association between categorical variables, based on the comparison of observed frequencies to expected frequencies.

Estimated Form

A version of a statistical model where the parameters have been estimated from data, as opposed to its theoretical or exact form.