Sample Size Calculator For 2 Proportion Test (Finite Population)

Hint: Use this calculator to determine the number of samples required to compare two population proportions if you have a finite population (i.e. less than 50000)

Confidence Level

The minimum acceptable probability of preventing type 1 error

90%

95%

99%

99.9%

Power of Test

The minimum acceptable probability of preventing type 2 error

50%

80%

90%

95%

99%

Proportion 1

Enter the first population proportion. For 50%, just enter 50

Proportion 2

Enter the first population proportion. For 50%, just enter 50

Number1

Number2

Number3

Number4

Number5

Sample Size (2 - proportion test)

Minimum samples required to check if the two proportions are similar or not

Finite Population

Enter a number less than 50,000

Sample Size (2 - proportion test) for finite population

Minimum samples required to check if the two proportions are similar or not for the given finite population