Intervalos de confianza de Wald

The Wald confidence interval is a statistical method used to estimate a range where a true value, like a population proportion or average, is likely to fall. It’s based on sample data and provides an interval that, with a certain confidence level (often 95%), probably contains the true value. Think of it as drawing a line around your estimate: if you repeated your survey many times, about 95% of those lines would include the actual value. The Wald method is straightforward but can be less accurate with small samples or uncertain estimates.