Minimum Sample Size
Population Size105
Margin of Error1
Confidence0.95
Power0.5
Population Variance13.03
z(alpha/2) + z(beta)1.95996398454005
z(alpha) + z(beta)1.64485362695147
Minimum Sample Size (2 sided test)34.1158605076111
Minimum Sample Size (1 sided test)26.5817119261086


Minimum Sample Size (for Infinite Populations)
Population Sizeinfinite
Margin of Error1
Confidence0.95
Power0.5
Population Variance13.03
z(alpha/2) + z(beta)1.95996398454005
z(alpha) + z(beta)1.64485362695147
Minimum Sample Size (2 sided test)50.0542084336444
Minimum Sample Size (1 sided test)35.2532312068632


Minimum Sample Size (Unknown Population Variance)
Population Size105
Margin of Error1
Confidence0.95
Power0.5
Population Varianceunknown
t(alpha/2) + t(beta)2.0342449237467
t(alpha) + t(beta)1.70664831715316
Minimum Sample Size (2 sided test)35.8511189577839
Minimum Sample Size (1 sided test)28.0724847744385


Minimum Sample Size
(Infinite Population, Unknown Population Variance)
Population Sizeinfinite
Margin of Error1
Confidence0.95
Power0.5
Population Varianceunknown
t(alpha/2) + t(beta)2.00951906663022
t(alpha) + t(beta)1.69057427063159
Minimum Sample Size (2 sided test)52.6173144353295
Minimum Sample Size (1 sided test)37.2402789797155