Counterexample

Is this true?

Every parameter in the one-way ANOVA model is estimable

No — it is false.

The counterexample

The object that kills this claim comes with Trap Analysis.

86 counterexamples are free — including most of the ones Part C leans on hardest.

Keep practicing

Invariants don't determine

Two objects sharing an invariant were treated as the same object.

See real exam options built on this mistake Drill statements like this

statistics anova

Go deeper· Explained in full in Linear models, Gauss–Markov and ANOVA· Asked in CSIR NET June 2025· From Linear Models and Multivariate › Gauss–Markov, regression, ANOVA basics

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