The standard error of a sample proportion can be calculated as:
Standard error = √p(1-p) / n
where:
- p is the proportion of successes
- n is the sample size
To find the standard error of a sample proportion, simply enter the necessary values below and then click the “Calculate” button.
Standard error = √p(1-p) / n
Standard error = √0.2(1-0.2) / 23 = 0.083406