Final answer:
The correct answer is one-way ANOVA, a statistical method used to compare the means of three or more independent groups to determine if there is a statistically significant difference.
Step-by-step explanation:
The appropriate statistical tool for comparing more than two means to determine if there might be a statistically significant difference between two or more of them is the one-way ANOVA. One-way ANOVA extends the comparison of two groups to several groups, testing the null hypothesis that all group means are equal against the alternative hypothesis that at least one group mean is different. This method requires that populations are normally distributed, have equal standard deviations, and the samples are randomly and independently selected.