To Compare the Means of Two Populations Which Cannot Be

question 65

True/False

To compare the means of two populations which cannot be assumed to be normally distributed and only ordinal-level data is available from two independent samples, we should use the t test for independent samples rather than the Mann-Whitney U test.

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Definitions:

Independent Variables

Factors in an experiment that are purposely manipulated to observe their effect on dependent variables.

Durbin-Watson Statistic

A measure used in statistics to detect the presence of autocorrelation in the residuals from a regression analysis.

First-Order Autocorrelation

First-order autocorrelation is a statistical measure indicating the correlation between values in a time series and their immediate predecessors.

Durbin-Watson D Statistic

A statistical tool designed to determine the existence of first-lag autocorrelation in the residuals of a regression analysis.