Statistics made easy
8th revised edition (March 2026) - many illustrative examples - only €8.99
Sample size calculator (proportion estimate)
This tool calculates the required sample size for a proportion estimate (yes/no or 0/1) . Enter the population size, your confidence level and the allowed margin of error.
- Size of the population
- Confidence level (z-value)
- Margin of error (e) in percentage points
Calculate sample size
Sample size = 383
Statistics made easy
- many illustrative examples
- ideal for exams and theses
- statistics made easy on 464 pages
- 8th revised edition (March 2026)
Only €8.99
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