1. s
XX
Z
−
=
n
ZX σ
αµ 2
1±=
n
X
Z
σ
µ−
=

2. n
ZX σ
αµ 2
1±=
nn
ZXZX σ
α
σ
α µ 2
1
2
1 +≤≤−
n
s
n
s ZXZX αα µ 2
1
2
1 +≤≤−

3. Binomial ( proporsi )
s
XX
Z
−
=
npq
npX
Z
−
=
npq
npx
Z
−
=
n
pq
n
x p
Z

−
=

4. n
pq
n
x
n
pq
n
x ZpZ αα 2
1
2
1 +≤≤−

n
pq
n
x Zp α2
1±=

n
pq
n
x p
Z

−
=

5. Untuk Dua Populasi
2
2
2
1
2
1
2
1
2
2
2
1
2
1
2
1 )()( 212121
n
s
n
s
n
s
n
s
ZXXZXX ++−≤−≤+−− αα µµ
n
s
n
s ZXZX αα µ 2
1
2
1 +≤≤−
n
pq
n
x
n
pq
n
x ZpZ αα 2
1
2
1 +≤≤−

2
22
1
11
2
1
2
2
1
1
2
22
1
11
2
1
2
2
2
1
)()( 21
n
qp
n
qp
n
x
n
x
n
qp
n
qp
n
x
n
x
ZppZ ++−≤−≤+−+ αα
