Weights​ (kg) of poplar trees were obtained from trees planted...

Weights​ (kg) of poplar trees were obtained from trees planted in a rich and moist region. The trees were given different treatments identified in the accompanying table. Use a 0.05 significance level to test the claim that the four treatment categories yield poplar trees with the same mean weight.

Find the F test statistic.

F=

No_Treatment Fertilizer Irrigation Fertilizer_and_Irrigation

1.12 1.08 0.08 0.79

0.49 0.87 0.57 1.48

0.55 0.58 0.13 0.92

0.17 0.61 0.73 1.44

1.29 1.01 0.91 1.12