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Z-Test for Population Means

Author: Jonathan Osters

Source: Image created by Joseph Gearin

Video Transcript

Additional Practice Problems

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Z-Tables

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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 for Population 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