5. Assume weights of football players are approximately normally distributed, and assume cris known from a prior study to be 35 lbs. Fifteen ARC football players were randomly sampled and weighed and their weights are given below. Find a 90% condence interval estimate of the average weight of ARC football players. Round to the nearest tenths place. 175 180 180 185 190 190 195 212 215 220 225 240 250 270 295