A technician compares repair costs for two types of microwave ovens (type I and type II). He believes us that the repair cost for type I ovens is greater than the repair cost for type II ovens. A sample of 51 type I ovens has a mean repair cost of $87.59. The population standard deviation for the repair of type I ovens is known to be $20.27. A sample of 34 type II ovens has a mean repair cost of $84.62. The population standard deviation for the repair of type ll ovens is known to be $20.46. Conduct a hypothesis test of the technician's claim at the 0.01 level of significance. Let ] be the true mean repair cost for type I ovens and /2 be the true mean repair cost for type II ovens. Step 1 of 5 : State the null and alternative hypotheses for the test. ata Answer Tables Keypad Keyboard Shortcuts Ho: M1 - H2 0572 Keypad Ha: HI - H2 O Shortcut