Question: A bank wants to estimate the mean amount (in SK) of outstanding consumer loans. The observed sample of 10 outstanding loans is the following

30 000, 25 000, 15 000, 10 000, 28 000, 14 000, 22 000, 17 000, 13 000, 19 000.

Assume the normally distributed amount of loans! Find 95% confidence intervals for the population mean and population dispersion of outstanding loans! Interpret the meaning of these intervals!