A technician compares repair costs for two types of microwave ovens (type l and type ) He believes that the repair cost for type l ovens is greater than the repair cost for type il ovens. A sample of 32 type i ovens has a mean repair cost of S89.74, with a standard deviation of SI0.39. A sample of 49 type ovens has a mean repair cost of S83.08, with a standard deviation of S11.67. Conduct a hypothesis test of the technician's claim at the 0,1 level of significance. Let ji be the true mean repair cost for type i ovens and be the true mean repair cost for type Il ovens

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