<s>
A	O
location	B-General_Concept
test	I-General_Concept
is	O
a	O
statistical	O
hypothesis	O
test	O
that	O
compares	O
the	O
location	O
parameter	O
of	O
a	O
statistical	O
population	O
to	O
a	O
given	O
constant	O
,	O
or	O
that	O
compares	O
the	O
location	O
parameters	O
of	O
two	O
statistical	O
populations	O
to	O
each	O
other	O
.	O
</s>
<s>
Most	O
commonly	O
,	O
the	O
location	O
parameter	O
(	O
or	O
parameters	O
)	O
of	O
interest	O
are	O
expected	O
values	O
,	O
but	O
location	B-General_Concept
tests	I-General_Concept
based	O
on	O
medians	O
or	O
other	O
measures	O
of	O
location	O
are	O
also	O
used	O
.	O
</s>
<s>
The	O
one-sample	O
location	B-General_Concept
test	I-General_Concept
compares	O
the	O
location	O
parameter	O
of	O
one	O
sample	O
to	O
a	O
given	O
constant	O
.	O
</s>
<s>
An	O
example	O
of	O
a	O
one-sample	O
location	B-General_Concept
test	I-General_Concept
would	O
be	O
a	O
comparison	O
of	O
the	O
location	O
parameter	O
for	O
the	O
blood	O
pressure	O
distribution	O
of	O
a	O
population	O
to	O
a	O
given	O
reference	O
value	O
.	O
</s>
<s>
In	O
a	O
one-sided	B-General_Concept
test	I-General_Concept
,	O
it	O
is	O
stated	O
before	O
the	O
analysis	O
is	O
carried	O
out	O
that	O
it	O
is	O
only	O
of	O
interest	O
if	O
the	O
location	O
parameter	O
is	O
either	O
larger	O
than	O
,	O
or	O
smaller	O
than	O
the	O
given	O
constant	O
,	O
whereas	O
in	O
a	O
two-sided	B-General_Concept
test	I-General_Concept
,	O
a	O
difference	O
in	O
either	O
direction	O
is	O
of	O
interest	O
.	O
</s>
<s>
The	O
two-sample	O
location	B-General_Concept
test	I-General_Concept
compares	O
the	O
location	O
parameters	O
of	O
two	O
samples	O
to	O
each	O
other	O
.	O
</s>
<s>
In	O
a	O
one-sided	B-General_Concept
test	I-General_Concept
,	O
it	O
is	O
stated	O
before	O
the	O
analysis	O
is	O
carried	O
out	O
that	O
it	O
is	O
only	O
of	O
interest	O
if	O
a	O
particular	O
treatment	O
yields	O
the	O
better	O
responses	O
,	O
whereas	O
in	O
a	O
two-sided	B-General_Concept
test	I-General_Concept
,	O
it	O
is	O
of	O
interest	O
whether	O
either	O
of	O
the	O
treatments	O
is	O
superior	O
to	O
the	O
other	O
.	O
</s>
<s>
The	O
following	O
tables	O
provide	O
guidance	O
to	O
the	O
selection	O
of	O
the	O
proper	O
parametric	B-General_Concept
or	O
non-parametric	B-General_Concept
statistical	I-General_Concept
tests	I-General_Concept
for	O
a	O
given	O
data	O
set	O
.	O
</s>
<s>
The	O
following	O
table	O
summarizes	O
some	O
common	O
parametric	B-General_Concept
and	O
nonparametric	B-General_Concept
tests	I-General_Concept
for	O
the	O
location	O
parameters	O
of	O
one	O
or	O
more	O
samples	O
.	O
</s>
