Make boxplots for petal length versus species, petal width versus species, sepal length versus species, and sepal width versus species.

Find the analysis of variance tables for the petal length, petal width, sepal length, and sepal width.

Find, and plot, simultaneous confidence intervals for the differences in the means for the four cases. Which differences appear to be significant? Do your results confirm what you saw in the boxplots?

Find the analysis of variance table.

Test the hypothesis that the means are all equal.

Find, and plot, simultaneous confidence intervals for the differences in the means. Which differences appear to be significant?