Konfidenssiväleitä
Konfidenssiväleitä, or confidence intervals in English, are a fundamental concept in statistical inference. They provide a range of plausible values for an unknown population parameter, such as the population mean or proportion, based on data from a sample. Instead of reporting a single point estimate, a confidence interval gives a more complete picture of the uncertainty associated with that estimate.
A confidence interval is characterized by a confidence level, typically expressed as a percentage (e.g., 95%
The width of a confidence interval is influenced by two main factors: the confidence level and the
Confidence intervals are crucial for decision-making in various fields, including research, business, and policy. They allow