"What is the lower bound of the 95% confidence interval for the following stock returns? (Blackboard will yell at you about the units (%), when tested it looks like adding the units or leaving the units off of this problem makes no difference in the grading. Do NOT answer in decimal form!) Year 1 - 13.6%, Year 2 - 17.4%, Year 3 - -0.4%, Year 4--1.3%, Year 5 - -3.5%, Year 6 - -9.4%