The difference between two sample means is an unbiased estimator of the difference between two population means .

Question

The difference between two sample means  is an unbiased estimator of the difference between two population means  .

Quizplus · Accepted Answer

The difference between two sample means is an unbiased estimator of the difference between two population means, as long as the samples are randomly selected and independent, and the populations have equal variances. This is a fundamental concept in statistical inference.

The Difference Between Two Sample Means Is an Unbiased