alleryStart learning →The average of the sample variances used in ANOVA is also known as a:
APooled variance
BPaired variance
CRanked variance
DNested variance
Answer & Solution
Correct answer: A. Pooled variance
1. The within-groups estimate has a standard name.
2. Variance within samples is the average of the sample variances.
3. That quantity is also known as a pooled variance.
4. It estimates the common population variance.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 13 'The F Distribution and One-Way ANOVA', sections 13.1-13.4_
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