A student wanted to construct a 95% confidence interval for the mean age of students in her statistics class. She randomly selec
ted nine students. Their mean age was 19.1 years, with a sample standard deviation of 1.5 years. What is the 95% confidence interval for the population mean?
If you nee solving it will be: c^6(-3c^5)^2 c^6(3c^5)^2 c^6·3^2(c^5)^2 c^6·9(c^5)^2 c^6·9c^10 9c^6c^10 9c^6+10 9c^16 So the answer is: 9c^16 (9c to the power of 16) Sorry I was late..