Testing Hypothesis : Two Population Means μ
1
, μ
2
[
Hypothesis
]
H
o
: μ
1
- μ
2
= D
H
1
: μ
1
- μ
2
≠ D
H
1
: μ
1
- μ
2
> D
H
1
: μ
1
- μ
2
< D
[
Test Type
]
t-test
Significance Level
α
=
(0 < α < 1)
[
Sample Type
]
independent
paired
[
Variance Assumption
]
σ
1
2
= σ
2
2
σ
1
2
≠ σ
2
2
[
Sample Data
]
(input either sample data or sample statistics using bsv)
Sample
1
Sample
2
[
Sample Statistics
]
Sample Size
n
1
=
n
2
=
n
d
=
Sample Mean
x̄
1
=
x̄
2
=
d̄
=
Sample Variance
s
1
2
=
s
2
2
=
s
d
2
=
[
: μ
1
- μ
2
]
=
⇔
[
,
]
=
[그림 8.9] 대응표본의 가설검정을 위한 자료입력
Execute
α =
0
1
Graph Save