High levels of phosphorus in soil can lead to severe reductions in water quality and animal populations.

Investigators treated soil specimens with six different treatments, and the acid phosphatase activity, which is related to the production of phosphorus, was recorded. Results are presented in the following one-way ANOVA table.

a. What are the values of SSTr and SSE?

b. What are the values of MSTr and MSE?

c. What is the value of the test statistic?

d. Can you conclude that the mean level of acid phosphatase activity varies among the treatments? Use the α = 0.05 level of significance.

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One-way ANOVA: Treatments A, B, C, D, E, F Source DF SS MS F P Treatment 5 1.18547 0.23709 46.64 0.000 Error 6 0.03050 0.00508 Total 11 1.21597