To test for an x distribution that is mound-shaped using sample size n 30, how

Question:

To test μ for an x that is mound-shaped using sample size n ≥ 30, how do you decide whether to use the normal or the Student's t 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...