Last Updated：2025/12/05
(statistics) A nonparametric test of the null hypothesis that the probability that a randomly selected value from one population is less than a randomly selected value from a second population is equal to the probability of being greater. It can be used to investigate whether two independent samples were selected from populations having the same distribution.
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Mann-Whitney U test
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Source Word
Mann-Whitney U test
Noun
(statistics)
A
nonparametric
test
of
the
null
hypothesis
that
the
probability
that
a
randomly
selected
value
from
one
population
is
less
than
a
randomly
selected
value
from
a
second
population
is
equal
to
the
probability
of
being
greater.
It
can
be
used
to
investigate
whether
two
independent
samples
were
selected
from
populations
having
the
same
distribution.
Japanese Meaning
マン・ウィットニーのU検定：統計学における非パラメトリック検定の一つで、2つの独立した母集団からのサンプルが同一の分布に従うかどうかを検証する手法。 / 各群の値のランク付けに基づいて、片方の群がもう一方の群に比べて全体的に小さいまたは大きいかを評価する検定方法。
Sense（1）
(statistics)
A
nonparametric
test
of
the
null
hypothesis
that
the
probability
that
a
randomly
selected
value
from
one
population
is
less
than
a
randomly
selected
value
from
a
second
population
is
equal
to
the
probability
of
being
greater.
It
can
be
used
to
investigate
whether
two
independent
samples
were
selected
from
populations
having
the
same
distribution.
（ plural ）
