Question: A system analyst is testing the feasibility of using a new computer system. The analyst will switch processing to the new system only if there is evidence that the new system uses less processing time than the old system. In order to make the decision a sample of 7 jobs was selected and the processing time, in seconds, was recorded for the two systems with the following results:

At the 0.1 level of significance, does the new system perform better than the old system?