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# Statistical Significance Calculator

A simple online statistical significance calculator to calculate the value of the Comparative error, difference and statistical significance for the given sample size and percentage response. The statistically significant result is attained when a p-value is less than the significance level. It is represented using the symbol (α), alpha. The statistical significance is used in hypothesis testing to find if a data is statistically significant.

## Find Comparative Error, Difference, Significance of Sample Size

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A simple online statistical significance calculator to calculate the value of the Comparative error, difference and statistical significance for the given sample size and percentage response. The statistically significant result is attained when a p-value is less than the significance level. It is represented using the symbol (α), alpha. The statistical significance is used in hypothesis testing to find if a data is statistically significant.

Code to add this calci to your website

#### Formula

Comparative Error = 1.96 x √ (r1(100-r1) ÷ s1) + (r2(100-r2) ÷ s2)
Where, r1 = Percentage Response 1 r2 = Percentage Response 2 s1 = Sample Size 1 s2 = Sample Size 2

#### Example

Consider 2 groups, one having 10 people and the other has 8. The percentages to compare are 5% for the group of 10 and 9% for the group of 8. Find the statitical significance of the given sample.
r1 = 5, s1 =10, r2 = 9, s2 = 8
Comparative Error = 1.96 x √[5 (100-5) / 10] + [9(100-9)/8]
= 1.96 x √[475/10] + [81/8]
= 23.99.