Let the observed mean of a sample of size 45 be = 68:51 from a distribution having

Question:

Let the observed mean of a sample of size 45 be = 68:51 from a having variance 110. Find a 95% confidence interval for the true mean µ and interpret the result and state any assumptions you have made.
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...