Question is

Suppose we want to compare the potencies of 4 different herbicides. We apply each herbicide at increasing concentrations, and the concentration at which the plant dies is recorded. Ten plants are used for each herbicide and the laboratory environment and measurement procedures are assumed identical for all groups. There is no group which receives no treatment (control). If we compare the mean concentration at death of each group to every other group, which of the following corrections would e best?

Turkey

Dunnet

Bonferroni

Fisher

My answer is Bonferroni.

But my answer is wrong.

What is the answer?

Is the answer is Turkey?