(5) In a certain type of engine, the flywheel is fastened to the crankshaft flange block by eight bolts, which must be tightened in sequence. An engineer wants to determine how much difference there is between the torque of the first and the last bolts tightened. In a sample of six engines, the torques on each of these bolts is measured. The values, in Nom, for bolts 1 and 8 are shown below. Find a 95% confidence interval for the difference between the torques. Machine Bolt 1 Bolt 8 1 101.26 101.33 2 101.05 101.94 3 100.50 101.37 4 100.70 101.79 100.95 101.37 O. 101.21 101.19