Confidence

Syntax

Confidence(Alpha, StandartDeviation, Size)

Parameters

Alpha. Significance level that is used to estimate confidence level. This value should satisfy the following constraint: 0 < Alpha < 1.

StandartDeviation. The standard deviation of the population for a data range, assumed to be known. The value must satisfy the constraint: StandartDeviation > 0.

Size. Sample size.

Description

The method returns confidence interval for population mean.

Comments

A confidence interval is an interval from both sides of the sample mean.

The reliability level is 100*(1 - Alpha)%, i.e. alpha= 0.05 refers to 95% reliability level.