HITUNG SAMPEL

Tugas ngitung sampel

Diketahui: p = 50%, Z = 95%, C = 7%, N = 4000
Ditanya: n? dan n’?
Jawab:
V ?
V= √(p(100-p) )
V= √(50(100-50) )
V= √(50(50) )
V= √2500 = 50
n ?
n= ((Z×V)/C)^2
n=((1,96×50)/7)^2
n=(98/7)^2
n= (14)^2=196
n’ ?
n^'=n/(1+n/N)
n^'=196/(1+196/4000)
n^'=196/(1+0,049)
n^'=196/1,049
n^'=186,8 atau 187