<s>
In	O
statistical	O
hypothesis	O
testing	O
,	O
there	O
are	O
various	O
notions	O
of	O
so-called	O
type	B-General_Concept
III	I-General_Concept
errors	I-General_Concept
(	O
or	O
errors	O
of	O
the	O
third	O
kind	O
)	O
,	O
and	O
sometimes	O
type	B-General_Concept
IV	I-General_Concept
errors	I-General_Concept
or	O
higher	O
,	O
by	O
analogy	O
with	O
the	O
type	O
I	O
and	O
type	O
II	O
errors	O
of	O
Jerzy	O
Neyman	O
and	O
Egon	O
Pearson	O
.	O
</s>
<s>
Fundamentally	O
,	O
type	B-General_Concept
III	I-General_Concept
errors	I-General_Concept
occur	O
when	O
researchers	O
provide	O
the	O
right	O
answer	O
to	O
the	O
wrong	O
question	O
,	O
i.e.	O
</s>
<s>
In	O
systems	O
theory	O
an	O
additional	O
typeIII	O
error	O
is	O
often	O
defined	O
:	O
typeIII	O
( δ	O
)	O
:	O
asking	O
the	O
wrong	O
question	O
and	O
using	O
the	O
wrong	O
null	B-General_Concept
hypothesis	I-General_Concept
.	O
</s>
<s>
Type	O
I	O
error	O
:	O
"	O
rejecting	O
the	O
null	B-General_Concept
hypothesis	I-General_Concept
when	O
it	O
is	O
true	O
"	O
.	O
</s>
<s>
Type	O
II	O
error	O
:	O
"	O
failing	O
to	O
reject	O
the	O
null	B-General_Concept
hypothesis	I-General_Concept
when	O
it	O
is	O
false	O
"	O
.	O
</s>
<s>
Type	O
III	O
error	O
:	O
"	O
correctly	O
rejecting	O
the	O
null	B-General_Concept
hypothesis	I-General_Concept
for	O
the	O
wrong	O
reason	O
"	O
.	O
</s>
