In estimating the difference between two population means, the estimate for the standard deviation of the sampling distribution of is found by taking the square root of the sum of the two sample variances.

Question

In estimating the difference between two population means, the estimate for the standard deviation of the sampling distribution of  is found by taking the square root of the sum of the two sample variances.

Quizplus · Accepted Answer

The estimate for the standard deviation of the sampling distribution of the difference between two population means is found by taking the square root of the sum of the two population variances divided by their respective sample sizes.

In Estimating the Difference Between Two Population Means, the Estimate