11. In Chapter 14, Practice Problem 14.2, an independent groups experiment was conducted to investigate whether lesions of the thalamus decrease pain perception.   0.051 tail was used in the analysis. The data are again presented here.

Scores are pain threshold (milliamps) to electric shock. Higher scores indicate decreased pain perception.

Neutral Area Lesions Thalamic Lesions 0.8 1.9 0.7 1.8 1.2 1.6 0.5 1.2 0.4 1.0 0.9 0.9 1.4 1.7 1.1 Using these data, verify that F  t2 when there are just two groups in the independent groups experiment.