Pesticides sprayed on crops can affect human beings. A symptomof the action of a pesticide is reduction
in brain acetylcholinesterase (AChE) activity, and a severereduction can be dangerous in terms of body
functions. When cotton is sprayed, one criterion of theexistence of such a reduction is whether quail in
field borders show reduced AChE activity. In one collection, thefollowing six observations were made
for brain AChE activity in quail: 86.03, 83.67, 95.21, 92.94,83.12 and 80.22. Suppose that the mean
brain AChE activity for quail who have not been exposed to thepesticide is 95. Do these data show a
reduction in AChE activity. Test at a 0.05 significancelevel
