Answer:
Calculate the average processing time of the new software
Step-by-step explanation:
Since the average processing time of the old software is already known, the simplest test to see if the new software is faster than the old software will be to calculate the average processing time for the new software and compare it with the average processing time of the old software.
If the new software have an average processing time lower/smaller than that of the old software; we conclude that the new software is faster.
If the new software have an average processing time higher/larger than that of the old software; we conclude that the old software is faster.