|
As we have already discussed, the objective of using statistics is to
make some inference about a population. This statement is the
ultimate goal of experimental studies. Although this section is
titled Introduction to Experimental Studies the concepts that we
will discuss can be applied to conducting scientific studies,
reading scientific articles, and designing a field survey (such as a
timber inventory).
Designing a good sampling strategy can be a very challenging task
for researchers, and agency personnel who are conducting a field
inventory. Just as with surveys, you must first identify what you
will sample and what your population is.
Example
You may decide that instead of randomly choosing
individual trees within your population you will randomly sample 1
acre pieces of land from the population. Once you have decided upon
your population and your experimental unit you must decide how the
sampling will take place. |
Printable Lesson