The rabbit populations of 100 fields were estimated and the 9 fields with the highest estimated rabbit populations were selected for a rabbit inhibition experiment.

The inhibition experiment consisted of erecting gruesome pictures in the middle of each field portraying farmers killing rabbits. After three years these nine fields were revisited and rabbit numbers were again assessed. In all nine cases the rabbit population had fallen. Assuming the experimental method is valid, perform an appropriate test to determine the probability of an improvement in nine out of nine cases being achieved if in fact the gruesome pictures had no effect on the rabbits. Are you reasonably convinced that gruesome pictures inhibit the rabbit population? What major flaws are there in the experimental method here? P-963