Testing Hypothesis : Two Population Proportion P
1
, P
2
[
Hypothesis
]
H
o
: p
1
- p
2
= D
H
1
: p
1
- p
2
≠ D
H
1
: p
1
- p
2
> D
H
1
: p
1
- p
2
< D
[
Test Type
]
Z-test
Significance Level
α
=
(0 < α < 1)
[
Sample Data
]
Sample Size
n
1
=
n
2
=
Sample Proportion
p̂
1
=
p̂
2
=
[
Confidence Interval
]
z
α/2
=
p̄ = (n
1
p
1
+ n
2
p
2
) / (n
1
+n
2
)
=
(p̂
1
- p̂
2
- D)
±
z
α/2
√ ( p̄ (1-p̄) / n
1
+ p̄ (1-p̄) / n
2
)
⇔
(
,
)
[그림 8.19] 두 모비율 가설검정을 위한 자료입력
Execute
α =
0
1
Graph Save