Calculadora de Tamanho de Amostra
MathCalcule o tamanho de amostra necessário para pesquisas e estudos estatísticos com base no nível de confiança e margem de erro.
Digital Calculation Report
Sample Size Calculator Report
Calculate the required sample size for a survey or study.
Input Parameters
| Parameter | Value |
|---|---|
| Confidence Level | 95 |
| Margin of Error (e.g. 0.05 = 5%) | 0.05 |
| Estimated Proportion (0-1, use 0.5 if unknown) | 0.5 |
| Population Size (optional, leave blank if unknown/large) |
Calculated Results
| Metric | Computed Value |
|---|---|
| Tamanho de amostra necessário | 385 |
Calculations are provided for educational purposes and should be independently verified for financial, investment, or medical decisions.
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Input Parameters
Adjust parameters to instantly compute metrics.
Computed Results
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Common Questions about Sample Size
O que significa margem de erro de 5%?
Qual nível de confiança devo escolher?
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Educational Guides & Related Articles
Read our expert-reviewed articles to learn more about the concepts, formulas, and practical advice related to Sample Size.