Robert Klassen Manufacturing, a medical equipment manufacturer, subjected 110 heart pacemakers to 4,500 hours of testing Halfway through the testing, 6 pacemakers faled The fallure rate in terms of: a) Percent of fallures =5.4% (enter your response as a percentage rounded to ane decimal place). b) Number of fallures per unit-hour of operating time =0.00001246 fallures per hour (round your response to eight docimal places)- c) Number of failures per unit year = fallures per year (round your response fo four decimal places)