Question

A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for type I ovens is greater than the repair cost for type II ovens. A sample of 34 type I ovens has a mean repair cost of $70.86, with a standard deviation of $12.35. A sample of 48 type II ovens has a mean repair cost of $67.84, with a standard deviation of $21.72. Conduct a hypothesis test of the technician's claim at the 0.1 level of significance. Let μ1 be the true mean repair cost for type I ovens and μ2 be the true mean repair cost for type II ovens. Step 3 of 4 : Determine the decision rule for rejecting the null hypothesis H0. Round the numerical portion of your answer to two decimal places.

Answer 1

from above decision rule :reject HO: if test statstic t >1.293 ( please try 1.308 if this comes wrong and revert)