Throughout this chapter reference is made to a number of sample data files.
So that you can try the examples for yourself,
-you should have received these files along with your copy of PSPP.
+you should have received these files along with your copy of PSPP.@c
@footnote{These files contain purely fictitious data. They should not be used
for research purposes.}
@note{Normally these files are installed in the directory
The researcher starts by making a @dfn{null hypothesis}.
Often this is a hypothesis which he suspects to be false.
For example, if he suspects that @var{A} is greater than @var{B} he will
-state the null hypothesis as @math{ @var{A} = @var{B}}.
+state the null hypothesis as @math{ @var{A} = @var{B}}.@c
@footnote{This example assumes that is it already proven that @var{B} is
not greater than @var{A}.}