📊 Power Analysis Calculator
// hitung sample size needed, atau power dari n existing
Test Type
1-sample t-test
2-sample independent t-test
Correlation
Effect Size =
0.5
α (significance) =
0.05
0.01
0.05
0.10
Target Power =
0.80
n per grup (override) =
auto
Z-α/2:
1.960
Z-β (target):
0.842
n needed per grup (target power):
32
Power achieved (n override):
-
...