Enter x1 Enter n1 Enter x2 Enter n2 Enter Confidence Interval % (1 - α)

##### How does the Difference of Proportions Test Calculator work?
Free Difference of Proportions Test Calculator - Calculates a test statistic and conclusion for a hypothesis for the difference of proportions
This calculator has 5 inputs.

### What 5 formulas are used for the Difference of Proportions Test Calculator?

p^1 = x1/n1
p^2 = x2/n2
q^1 = 1 - p^1
q^2 = 1 - p^2
(p^1 - p^2) - zα/2*I < p1 - p2 < (p^1 - p^2) + zα/2*I

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##### What 7 concepts are covered in the Difference of Proportions Test Calculator?
alternative hypothesis
opposite of null hypothesis. One of the proposed proposition in the hypothesis test.
H1
confidence interval
a range of values so defined that there is a specified probability that the value of a parameter lies within it.
difference of proportions test
hypothesis
statistical test using a statement of a possible explanation for some conclusions
null hypothesis
in a statistical test, the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
H0
proportion
n equation in which two ratios are set equal to each other
a/b = c/d
test statistic
a number calculated by a statistical test