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4 Tutorials that teach Z-test for Population Means
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Z-test for Population Means

Z-test for Population Means

Description:

This lesson will explain hypothesis testing when the population standard deviation (sigma) is known.

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Terms to Know
z-test for population means

A hypothesis test that compares a hypothesized mean from the null hypothesis to a sample mean, when the population standard deviation is known.

Formulas to Know
z-statistic of Means

z space equals space fraction numerator x with bar on top space minus space mu over denominator begin display style bevelled fraction numerator sigma over denominator square root of n end fraction end style end fraction