If two random samples of size 40 each are selected independently from two populations whose variances are 35 and 45,then the standard error of the sampling distribution of the sample mean difference, $x _ { 1 } - x _ { 2 }$
,equals 1.4142.

Question

If two random samples of size 40 each are selected independently from two populations whose variances are 35 and 45,then the standard error of the sampling distribution of the sample mean difference, $x _ { 1 } - x _ { 2 }$ 
,equals 1.4142.

Quizplus · Accepted Answer

The Answer of If two random samples of size 40 each are selected independently from two populations whose variances are 35 and 45,then the standard error of the sampling distribution of the sample mean difference, $x _ { 1 } - x _ { 2 }$ 
,equals 1.4142.

If Two Random Samples of Size 40 Each Are Selected x1−x2x _ { 1 } - x _ { 2 }x1​−x2​

If Two Random Samples of Size 40 Each Are Selected $x _ { 1 } - x _ { 2 }$