Homework. (11 21 X Data table ulator to a local high school. Student reaction time in an emergency was measured vision. For a random sample of nine teenagers, the time (in seconds) required to brin ormally distributed with no outliers. Subject 1 2 3 4 5 6 7 8 9 Normal, Xi 4.47 4.34 4.58 4.65 4.31 4.83 4.55 5.00 4.79 Impaired, Y 5.86 5.85 5.45 5.32 5.83 5.49 5.23 5.63 5.63 a good idea in designing the experiment? Print Done occur in using the simulator. (b) Use a 95% confidence interval to test if there is a difference in braking time with impaired vision and normal vision where the differences are computed as "impaired minus normal." The lower bound is The upper bound is (Round to the nearest thousandth as needed.)