alleryStart learning →The variance between samples is described as the variance of the sample means multiplied by:
AThe total sum of x
BThe standard error
CThe sample size n
DThe group count k
Answer & Solution
Correct answer: C. The sample size n
1. The between-groups estimate scales with sample size.
2. Variance between samples is an estimate of the population variance.
3. It is the variance of the sample means multiplied by n.
4. That holds when the sample sizes are the same.
_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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