When the two population variances are unequal, we cannot pool the data and produce a
common estimator. We must calculate s₁² or s₂² and use them to estimate σ₁² and σ₂² respectively.

Question

When the two population variances are unequal, we cannot pool the data and produce a common estimator. We must calculate s₁² or s₂² and use them to estimate σ₁² and σ₂² respectively.

Quizplus · Accepted Answer

When the Two Population Variances Are Unequal, We Cannot Pool