In addition to therapy, anti-depressant drugs are used in the treatment of depression. The data Type numbers in
below are from a study comparing two anti-depressant drugs. A baseline measurement for symptomatic behavior for depression is taken. After treatment with medication, another measurement taken. The data given in the table is for improvement which is for the reduction
in symptomatic behavior.

Drug A 2.30 2.39 4.03 2.90 3.45 3.29 3.82 3.27 4.08 1.83 4.07 5.06
Drug B 9.31 7.37 4.50 6.00 7.22 4.21 5.25 5.99 8.37 3.82 3.69 3.40