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 59 type I ovens has a mean repair cost of $70.10, with a standard deviation of $19.40. A sample of 49 type II ovens has a mean repair cost of $63.21, with a standard deviation of $12.29. Conduct a hypothesis test of the technician's claim at the 0.05

0.05 level of significance. Let 1 be the true mean repair cost for type I ovens and

2 be the true mean repair cost for type II ovens.

Step2of4:Compute the value of the test statistic. Round your answer to two decimal places.