Exercise:
Four different stimulations (A1, A2, A3, and A4) were applied to 10 subjects, and the subjects’ responses were compared between pre- and post-stimulation. The changes in response were quantified by subtracting pre-stimulation response from post-stimulation response in each subject, and the results are shown in the figure below.
Analyze whether magnitudes of response are different depending on types of stimulation.
