Statistical Tests of Significance
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Two Sample Proportion: Z test
Formula used and other details
First Sample Proportion (P1)
%
Required
Enter positive number between 0.01 to 99.99
Sample proportion in your first sample. In Percentage
Sample Size in first group (N1)
Required
Total number of observations in first group
Second Sample Proportion (P2)
%
Enter positive number between 0.01 to 99.99
Required
Sample proportion in your second sample. In Percentage
Sample Size in second group (N2)
Required
Total number of observations in second group
Significance level (Alpha / type I error - in percentage)
%
Enter positive number between 0.01 to 99.99
Required
Commonly used values are 5%, 1% and 10%. If your significance level is 0.05, then enter 5
One sided or two sided
Enter either 1 or 2
Required
One tailed or two tailed hypothesis
Results