A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two- year colleges in the United States. Two surveys are conducted. Of the 35 two-year colleges surveyed, the mean enrollment was 5,068 with a standard deviation of 4,777. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. Alpha = 0.05. Subscripts: 1: two-year colleges; 2: four-year colleges Ho: Mi Zur Hau1

0.05 At the 5% significance level, there is sufficient evidence to conclude that the mean enrollment at four- year colleges is higher than at two-year colleges