3. In 2017, the sale price (in thousands of dollars) of thirty randomly selected 2- bedroom dwellings in the South Australian town of Coober Pedy are listed below 260, 85, 125, 53, 57, 89.5, 170, 47.5, 150, 65, 119, 50, 65, 119, 64 210, 99, 260, 72, 55, 52.5, 130, 89.5, 170, 45, 115, 67, 50, 120, 78 Calculate a 95% confidence interval for the average sale price of a 2-bedroom dwelling in Coober Pedy in 2017