The City of Berrysville intends to purchase a new computer system. After extensive search and comparison, the committee responsible for selecting the new system has narrowed the alternatives to two: the Number Cruncher I and the Graphic Design III. Both systems were tested for reliability last year by an independent research firm, which provided the following results to the committee:

Computer System # of Breakdowns Mean # of Breakdowns Standard Deviation of Number of breakdowns
Number Cruncher I
36

11.4 9.8
Graphic Design III 36 15.2 4.3

Based on these data, which computer system should the committee recommend for purchase? Justify your answer.