So sánh phương pháp

	Khoảng tin cậy	Kiểm định giả thuyết không
Lĩnh vực	Thống kê nghiên cứu	Thống kê nghiên cứu
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1937	1925
Người khởi xướng	Jerzy Neyman	Ronald Fisher; Neyman & Pearson
Loại	Concept	Concept
Công trình gốc	Neyman, J. (1937). Outline of a Theory of Statistical Estimation Based on the Classical Theory of Probability. Philosophical Transactions of the Royal Society, 236, 333–380.	Fisher, R. A. (1925). Statistical Methods for Research Workers. Oliver and Boyd.
Tên gọi khác	CI, 95% CI, credible interval, interval estimate	NHST, hypothesis formulation, null hypothesis, alternative hypothesis
Liên quan	4	4
Tóm tắt	A confidence interval (CI) is a range of values, calculated from sample data, that likely contains the true population parameter. Introduced by Jerzy Neyman in 1937, it provides an interval estimate rather than a single point estimate, incorporating both the observed value and the uncertainty around it. The standard 95% confidence interval is a robust, intuitive alternative to p-values for communicating research results.	Null Hypothesis Significance Testing (NHST) is the dominant statistical framework in empirical research. The null hypothesis (H₀) represents the default assumption—typically 'no effect' or 'no difference'—while the alternative hypothesis (H₁) represents the claim being tested. The test calculates the probability of observing the data given H₀ is true (p-value); if p is very small, H₀ is rejected in favor of H₁. Formulated by Ronald Fisher and extended by Neyman and Pearson in the early 20th century, NHST is foundational to confirmatory research but has been widely critiqued for misuse and misinterpretation.