The T Distribution Allows the Calculation of Confidence Intervals for Means

question 70

True/False

The t distribution allows the calculation of confidence intervals for means for small samples when the population variance is not known,regardless of the shape of the distribution in the population.

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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.