Question: Question 23: Microwave Repair Cost. A microwave oven repairer says that the mean repair cost for damaged microwave ovens is less than $100. You work for the repairer and want to test this claim. You find that a random sample of five microwave ovens has a mean repair cost of $75 and a standard deviation of $12.50. At \[\alpha =0.01\], do you have evidence to support the repairer’s claim?