A(n)_____ is a test for hypotheses stating that the mean scores from some interval- or ratio-scaled variable group based on some less-than interval classificatory variable are not the same.
A) regression
B) cluster analysis
C) x² test
D) independent samples t-test

Question

Quizplus · Accepted Answer

The independent samples t-test is specifically used to compare the means of two groups based on an interval or ratio-scaled variable. It is appropriate when the two groups are independent of each other, meaning that the data in one group is not related or connected to the data in the other group. The other options (regression, cluster analysis, and x² test) are not appropriate for testing differences between means based on a classificatory variable.

A(n)_____ Is a Test for Hypotheses Stating That the Mean