Suppose x has a distribution with a mean of 20 and a standard deviation of 3. Random

Question:

Suppose x has a with a mean of 20 and a standard deviation of 3. Random samples of size n = 36 are drawn.

(d) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 19? Explain.

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...