Mathematics A-Level
standard error σ/√n
What standard error σ/√n means in Mathematics A-Level, as defined for WJEC.
Definition of standard error σ/√n
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Reference: WJEC
The standard deviation of the sample mean, since the variance of the sample mean is σ²/n.
Topics that use standard error σ/√n
Related terms
- critical value comparison
- linear association test
- Normal mean hypothesis test
- population correlation ρ
- Z-test statistic
- exclusion of formula derivation
- linear association scope
- non-linear relationships
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