This is a quick tutorial on how to perform ANOVA in R.

I misstated at the end the hypothesis we are testing the means, not variances of the variables. So for this example we reject the null and say there is not enough evidence to suggest different means between groups.

The median line in the boxplot should be close to the mean (if your data is normal which is an assumption in ANOVA)

--------- Data Set -----------

http://college.cengage.com/mathematic...

Thank you very much for your time!

#R #ANOVA