A computer help desk is provided by Gregory. Some of the callers need assistance with hardware and other with software. A sample of 30 software calls showed an average of 13 minutes with a standard deviation of 1.1 minutes for handling a call. For 40 hardware callers, the average was 16.8 minutes with a standard deviation of 2.1 minutes. The manager decided to assume that the population standard deviations were unequal. At alpha =0.5 can we conclude that it takes less time to resolve software issues? Estimate the P value