A horticulturist was investigating the phosphorus content of tree leaves from three differ...

A horticulturist was investigating the phosphorus content of tree leaves from three different varieties of apple trees (1, 2, and 3). Random samples of five leaves from each of the three varieties were analyzed for phosphorus content. The data are given here as well as the AOV table.

Run Tukey’s procedure to make all pairwise comparisons based on α = .05.

Run an analysis of variance to determine whether there are any significant differences among the five weight-reducing agents. Use α = .05. Do any of the AOV assumptions appear to be violated? What conclusions do you reach concerning the mean weight loss achieved using the five different agents?