Two random samples of home computer users in Vancouver are asked to test two different types of high-speed Internet access, one provided by a cable TV company and one provided by a telephone company. The computer users are asked to rate the service after three months on a five-point scale, where 1 corresponds to very satisfied and 5 corresponds to very dissatisfied. At a2.5% level ofsignificance, is there evidence that the consumers rate the two services differently?