Amounts of net worth

Listed below are the amounts of net worth (in millions of dollars) of the ten wealthiest celebrities in a country. Construct a 90% confidence interval. What does the result tell us about the population of all celebrities? Do the data appear to be from a normally distributed population as required? 244 219 198 174 170 159 159 154 154 153 What is the confidence interval estimate of the population mean u? 5million