Describe the sampling distribution of 1 2 for two independent samples when 1 and 2 are

Question:

Describe the sampling of 1 – 2 for two independent samples when σ1 and σ2 are known and either both sample sizes are large or both populations are normally distributed. What are the mean and standard deviation of this sampling Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...