a brief explanation or answer only is fine thank you.

Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c= 0.90, x = 14.4, s=3.0, n=5 (Round to one decimal place as needed.)Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c = 0.95, x = 14.1, s= 0.62, n = 12 (Round to one decimal place as needed.)