Answer
We use part of the text in problem 34 as an example of a statistical study.
This study gave daily doses of a compound to 20 people and record the
responses over a 6 month period. This is clearly a well planned experiment,
and it is an experimental study.
Work Step by Step
According to a pilot study of
20 people conducted at the University of Minnesota,
daily doses of a compound called arabinogalactan over a
period of 6 months resulted in a significant increase in
the beneficial lactobacillus species of bacteria.
