Finding Critical Value From Z Score Confidence Level Graphing Calculator

\n \n

Find the critical value from z-score for any confidence level using the standard normal distribution.

\n\n

\n \n \n

\n\n \n\n

\n

Results

\n \n

\n

\n

\n

\n

\n\n

\n

Z-Score Confidence Level Table

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

Confidence Level	Z-Score (Two-Tailed)	Alpha (α)	Alpha/2 (α/2)	Tail Type
80%	1.282	0.20	0.10	Two-Tailed
90%	1.645	0.10	0.05	Two-Tailed
95%	1.960	0.05	0.025	Two-Tailed
99%	2.576	0.01	0.005	Two-Tailed
99.9%	3.291	0.001	0.0005	Two-Tailed

\n

\n

\n

What is the Z-Score Confidence Level Calculator?

\n

The Z-Score Confidence Level Calculator is a statistical tool that helps researchers, students, and data analysts determine the critical value from a standard normal distribution (z-distribution) for a given confidence level. This critical value is essential for hypothesis testing,