The analysis of variance helps us compare the means of two, or more quantitative populations. Thus, it might be used by the manager of a farm who wants to know whether there is any difference in:
A) the average crop yield associated with the use of five types of fertilizer
B) the average crop yield associated with five alternative quantities of a given type of fertilizer that might be applied
C) the average crop yield associated with five alternative times at which a given quantity of a given type of fertilizer might be applied
D) all of these
E) none of these

Question

Quizplus · Accepted Answer

The analysis of variance can be used to compare the means of multiple populations, regardless of the factor being compared. Therefore, all three scenarios (types of fertilizer, quantities of fertilizer, and times of application) could be compared using ANOVA.

The Analysis of Variance Helps Us Compare the Means of Two