a-researcher-collects-data-on-reaction-times-in-milliseconds-from-drivers-using-

Question

A researcher collects data on reaction times (in units of milliseconds) from drivers using four different types of dashboard displays. The goal is to test whether the mean reaction times are the same for all display types. The researcher uses ANOVA for the analysis. Why is this method called "analysis of variance" when the objective is to compare means?

Accepted Answer

Because it uses the variances within and between groups to determine if the means differ significantly.

Answer

Because it compares the variances of the groups directly.

Answer

Because it only analyzes the means of the groups.

Answer

Because it ignores the differences in means and focuses on medians.