age number e points scored in those games was 226 with a sample variance of 122 5 Assuming that the underlying distribution of the data is normal and that these observations are independent and identically distributed construct a 90 confidence interval for the true mean number of points of an NBA game Lower bound 219 14 Upper bound 232 86 Lower bound 217 49 Upper bound 234 51 Lower bound 220 85 Upper bound 231 15 Lower bound 213 62