Minimum Sample Size
Population Size37599
Margin of Error0.05
Confidence0.95
Power0.5
Response Distribution (Proportion)0.5
z(alpha/2) + z(beta)1.95996398454005
z(alpha) + z(beta)1.64485362695147
Minimum Sample Size (2 sided test)380.270800516995
Minimum Sample Size (1 sided test)268.628496886004


Minimum Sample Size (infinite population)
Population Sizeinfinite
Margin of Error0.05
Confidence0.95
Power0.5
Response Distribution (Proportion)0.5
z(alpha/2) + z(beta)1.95996398454005
z(alpha) + z(beta)1.64485362695147
Minimum Sample Size (2 sided test)384.145882069412
Minimum Sample Size (1 sided test)270.554345409541