Confidence Interval for Mean

∑

intermediate

Calculate confidence interval for a population mean.

Formula

CI = x̄ ± z × σ/√n

Sample Mean (x̄)

Sample Std Dev (s)

Sample Size (n)

Confidence Level

Related Calculators

You might also find these useful

All Math → 649+ Calculators

Browse 600+ math calculators — stats, calculus, algebra, geometry, number theory, and more.

Fraction Calculator

Add, subtract, multiply, and simplify fractions.

Calculus Calculator

Numerical integration and differentiation.

Circumference

Find circumference, area, diameter, and radius of a circle.

Exponent & Root

Calculate exponents, square roots, and cube roots.

Geometry Calculator

Area, perimeter, surface area, and volume for shapes.